Introduction: Dawnwood GT-36 is basically an earbud-like design with a single large diaphgram (according to specs its 13.6mm) in each earpiece. So basically its a single dynamic driver earphone. The earbud shape turned in to an iem-like design by the use of a proper sound tube and filters. But as expected from this kind of an earphone design, it leaks some sound outside (while listening on high volume levels) and lets some of the outside noise -in- while listening.
 
I gave approximately 100 hours of burn-in time before starting critical listening and writing down my review. I have received my GT-36 from Penonaudio and the prduct page is here: Dawnwood GT-36
 

 
Suitible for: Relaxed listening without too much outside noise. Suitble for many genres. I have tested it with vocals, acoustic, metal, electronic, etc. music and it passed every test. But I have to highlight that the earphone is especially good for acoustic and vocal music. The music types which may require large soundstage sounds great with GT-36!  Suitible for listening through portable players (or sources) and doesn't need an amp. But will not forgive bad or less quality recordings. A very good earphone for audiophile who don't require deep subbass impact. Detail lovers may love this earphone as well. But its not super detailed like a Duke or bass section is detailed like B3P1, although delivers more bass compared to both.
 
This one is certainly a different and unique beast!
 
A little information about Dawnwood Company and the earphones: Dawnwood is a registered trdemark of 2015 Asia WIN Electronics LTD. and originates from China.
 
I want to highlight a section on the GT-36 Box:
"Are you enjoying music or just listening to sound?
With Dawnwood earphone, you would find the "Emotion" that puts you right in the middle of what the music truly delivers. Dawnwood understands the "Emotion" link between you and the music."
 
Hey, did someone say "Emotion" ! Alright Dawnwood people, you own my heart now!
 
OK, before going lyrical I have to highlight some of the design aspects of this earphone. Different materials were used for the main structure. The main metal double resonance cavity structure, also have plastic parts. The earphone doesn't feel cheap and weights heavier than expected. While checking the variable compound diaphragm design and filters (from the photos) it seemed to me that the designers spent quite a lot time while designing this earphone. Cable features high quality Oxygen Free Copper (OFC) and Kevlar reinforcement. Nice!

Specs:

1. Driver：13.6mm dynamic
2. Rated Power：100mW
3. Impedance: 18Ω 
4. Earphone sensitivity: 102dB/mw
5. Frequency Range: 20Hz-40KHz
6. Connection: 3.5mm stereo jack
7. Cable Length: 1.2m/OFC
8. Color: Standard Edition (Black/Gold) ,   MARVEL Edition: Captain America (Blue), Iron Man Edition (Red)
9. Whether with mic: Standard Edition-Without mic,  MARVEL Edition: With Mic

 
Unboxing:

 

 

 

 

 
I want to highlight some sections from the user manual (which is also written in English). I wish that all the manufacturers include these important information inside their product manuals!
Ear health is more important than the equipments and we all need to care more about this!!! Safe listening! (for further reading about safe listening please check this post).
I want to mention that I listen to my music between 60-80dB. I never exceed 85dB and the daily exposure (limit) for listening to music is approx 2-6 hours for me under these conditions.

 

 

 
 
General Sound Characteristics: Organic, accurate, full bodied, warm sound signature. In other words its safe to say that the earphone sounds on the north of being neutral (slightly bassier than a real neutral one) and sounds very natural (organic) to my ears. Treble section is not harsh. Subbass region needs some more impact. Bass is very dependent on the eartip selection and instertion. So this is really a YMMW situation... You may or may not get good bass from this earphone depending on your eartip selection and fitting.
 
Treble: Neither harsh nor very smooth. Not sibilant at all. I have to say that the treble range is one of the best tuned range among the mids. It delivers great amount of details too. These charateristics are very hard to achieve. If you're an experienced reader or a "reviewer" you may already know what I mean   (9/10)
 
Mids: One of the best ranges on this earphone. Especially vocals and acoustic music sounds great with good amount of details (9/10).
 
Bass: Midbass is more pronounced compared to subbass region But midbass doesn't bleed too much over the mids. I wanted to hear more detail at the bass section and some more subbass impact. Generally bass section is warm and well bodied (7.5/10).
 
Soundstage: Super expansive! Width is the largest I have ever heard from the similar products. Depth and height is not as large as the width. But as a general presentation I will call this one as being one of the largest soundstage!!! (9.5/10).
 
Layering: Layering is -like imaging- very good. But the capability to deliver each instrument and/or sound layers is better than the most earphones I have ever heard. Although on some super complex passages and with fast music such as Metallica "Dyers Eve" I wished to hear better layering and separation (6.5/10).
 
Imaging: Imaging is good for the price range. I can't call its the best. But quite good imaging for the price range (and as being an earphone). Although not better than a Havi B3P1 (7/10).
 
Detail: Detailing is very good. Its detailing characteristics are close to the best iems I have ever heard at the similar price range. Yet it doesn't sound harsh or sibilant. (8/10)
 
Isolation: Isolation is below average. You need to raise the volume higher than your usual listening levels in noisy environments (3.5/10).
 
Cable: OFC reinforced with Kevlar. Strong and soft to touch. Doesn't get tangled easily. Microphonics is on an acceptable level. If it had been over the ear design there should be no microphonics. (7/10)
 
Strain Relief: 3.5mm jack is very tiny (good design for connecting the jack to a phone inside a protective case). But the strain relief is somehow short and doesn't give me the feeling of being strong. Only time will tell the truth... The strain relief on the Y splitter is OK. The strain relief on the earpieces are hard plastic. Although it seems that there is a long strain relief on the earphone shell -because of the use of hard plastic- there is basically "no strain relief" on the earphone part! (3/10).
 
Overall Design: The earphone looks very sturdy and feels like a quality product. I love the Gold/Black color scheme. I love the logo of the company (looks like a clef sign or musical note)! I really cant fit earbuds but this one has a converted design to an iem so fitting were not a problem for me. I wish I could use it as an over the ear design as well. The Y splitter needs a chin slider (there were no chin slider on my unit). Also I would like to see better strain relief on the jack and earphone parts (7/10).
 
Comfort: Once fitted properly I didn't feel any discomfort. I have tried nearyl 60 different eartips and I have received the best sound and comfort with the included (attached with earphone) grayish silicone (long) eartips (9/10).
 
Accessories: OK for the price. A nice zippered case shouldn't hurt Dawnwood. There were only a soft pouch! 3 pairs of silicone eartips, a warranty card, a user manual, thats all... (4/10)
 
Value for Money: Scores high for this section (8/10).
 
Love Factor: (8/10)
 
Overall Rating =  7/10 (approx)
 
Test Tracks: Max Richter "On the Nature of Daylight" , Saint Cava "Trick" , "Daughter "The Woods" , Arctic Lake "Limits" , Olafur Arnalds "For Now I am Winter" , Patricia Barber "Romanesque" , Little Dragon "Pretty Girls", Metallica "Dyers Eve", Infected Mushrooms "Kipod-RiotRemix"  (All are either 320KPS mp3's or FLAC files)
 
Test Equipment: Main source is an iPod Touch 4th Gen (32GB). I have also tested the GT-36 connected with my LG G3, Cozoy Aegis Dac/Amp, ShelbrookAudio MiniHeadSignature Amp, GO720 Dac/Amp.
 
Sound Level While Testing: I have adjusted my sound level to deliver a SPL between 60-80 dB (depending on the track and passage) using my calibrated sound level meter (Uni-T UT352).
 
Acknowledgements: I have to thank Penonaudio.com for their excellent service and letting me know these great earphones!

What is Brainwaz S3?:
S3 is the latest iem offering from Brainwavz. It is a single dynamic driver (8mm) unit iem which has full aluminum chassis. Cable is flat all the way down to the jack. This iem has a microphone and 3 remote control buttons on its cable. Its gold plated 3.5mm jack is compatible with iPods, iPads, IOS, Android devices and mp3 players.
 
 
A little about me:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment non-serious period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good imaging. I am not bass or treble head. I can never tolerate sibilant and/or fatiguing highs. From new age to classical, hard rock to pop, instrumental to world music I enjoy diverse kinds of music types. For further, please check my profile.
 
 

S3 Package and Included Accessories:
The box of the S3 shares many many similarities with its previous models S1 and S5 which I had. There are factory seals all around the top and bottom flaps so you can be aware if someone else has opened the box before you. This seals are a must for any HP/IEM. On the back of the box the accessories that came with S3 are indicated. Also specs and some extra information are there...
 

Specifications:

1. Transducers/Drivers: Dynamic, 8mm
2. Rated Impedance: 16ohms Closed Dynamic
3. Sensitivity: 96dB at 1mW
4. Frequency range: 16Hz ~ 22 KHz
5. Rated input power: 10mW
6. Plug: 3.5 mm gold plated
7. Cable length: 1.3 meters Flat Cable

 
Microphone and Remote:

1. Designed for Apple iOS and Android devices
2. Phone Call Control
3. Audio Player Control
4. 3-Button Remote

 

Opening the magnetic lid reveals the iem carry case where the S3 lies inside. You can see the simple explanation of the remote button functions for IOS and Android devices. I love these simple yet easy to learn explanation figures.
 

On the left side of the lid there are information about the Brainwavz company and inner layout of the iem, cable and Comply foam tips...
 
Included Accessories:

1. 1 x Comply foam tips
2. 6 x Pairs of ear tips (S/M/L)
3. 1 x Shirt clip
4. 1 x Hard carrying case
5. 1 x Instruction manual & Warranty card

Inside the box there are great set of accessories. The only thing that I forgot to include in the photo is the shirt clip which was inside the carry case.
I love Brainwavz's approach on included accessories. Also the warranty card is located inside the main box.
 

I absolutely liked the new Velcro cable organizer. This type has been used by Havi and now its with Brainwavz iems.
 

3.5mm, 4 pole connector type stereo and mic supported jack is gold plated. I liked its build quality. Also strain relief is protective enough. But there is a single "con" for the jack design which might not be a problem if you're not using a case with your phone: The relatively fat front plastic part of this jack doesn't allow me to connect it to my LG G3 while it is inside the Verus hybrid protective case. I wish Brainwavz re-design this part of the jack in the future models. There are many people using their phone inside cases. Jack might be compatible with some other cases... Haven't tried it yet, but I can plug the VE Duke or CKR9 to my phone while its inside the same case.
 

The strain reliefs are protective enough for the cable. Biggest problem is with the flat cable design which Brainwavz really need to re-think of... Its making whole iem heavy, pulls the iem down, its structure is microphonic and easily catches by the skin or clothes. If the iem is used on the cable-up position microphonics are minimum (very low level). But after some time the flat cable starts to rub annoy the top part of my ears.
 
Is the cable tangle-free? In to some degree yes, it is tangle free and it seems very durable.
 

 
Fit and Comfort:
Left and right earpieces are marked clearly on both iem housings and iem is really easy to fit for my ears. Also I didn't hear any crackling noises while inserting or positioning it (driver flex or crackling sounds were reported by some users).

The nose of the iem housings have a groove and by the help of this groove structure the eartips rests on their place securely. The eartips don't tend to fall-out... After fitting they sit more comfortable if I use the cable-up strategy.
 

Isolation:
There is a single vent on each earpiece which is located on the top of the body. Thus S3 can allow some outside noise in. But IMO the isolation is still above average which is a good thing for an iem in my book. Also the the iem doesn't allow the sound to escape to surroundings. So it is suitable to use inside quiet environments like libraries or some offices.
 

 

Mic and Remote:
The microphone and remote are may be least mentioned part for headfiers but I have to say that Brainwavz microphones are one of the best I have ever tried on an iem. Sharing some similarities to the Brainwavz BLU-100 bluetooth iems microphone module, I like the overall design even better on S3. Buttons are easy to operate. Unfortunately the volume up/down button didn't work while playing music and making calls with my LG G3. The middle button works while accepting and rejecting calls. The middle button also served as play/pause/skip while playing music. The volume buttons might be active when used with some other Android and IOS devices. You need to check your own phones compatibility. I wish I could use the volume buttons
 
Call quality (sending the voice) is great thanks to the Brainwavz microphone technology. The small hole on the left hand side of the Brainwavz letter is the microphone opening. If you use the iem on the cable-up position this remote button/mic part sits on the left side of your head and its located to be somewhere under your cheek. When you use the iem cable-down position this part will be located under your chin. In either position -IMO- using the chin-slider is a "must" to lessen the microphonics and to make the fitting more secure.
 

 
How it sounds?:
 
In two words: Balanced and smooth.
 
Yes, this is the most balanced sound out of the "S" series that I have ever heard (compared to S1 and S5; from the memory). Also highs are extended and detailed enough but also highs region is very smooth. This sound type delivers non-fatiguing listening sessions which I appreciate a LOT!
 
Soundstage is somewhere between average and above average in all directions. To my ears some inner chamber resonance (probably partly due to non-angled and deep nozzle) is apparent but this is less noticeable after some brain burn-in. At first listen I thought that the sounds were coming from inside a cave but never feel that the soundstage was small. This first perception is very hard to detect these days which might be an indication of brain burn-in as well (getting used to the sound).
 
The S3 can be regarded as a very balanced sounding iem, but I have to mention, it has a slightly north of neutral bass section. Unlike its predecessor models, mid-bass is not bloated and never spills in to the mids (I appreciate this). Mids are the star of the show and they are beautifully presented. Although compared to some mid-range stars like Duke and B3Pro1, S3's mid-range can be felt slightly veiled and slightly less detailed. But it is still very good (detailed enough) and I love how it represents the human voices. Also general sound is very natural. I feel that Brainwavz really nailed the sound signature this time. I appreciate the smooth high region as well. It never gets fatiguing after extended listening sessions. High region has the needed detail and sparkle but treble-heads need not apply. On my S3 unit bass digs as deep as it can. I can hear down to 20Hz while using seine waves (test tones). And the bass is really beautifully represented. If I break down the bass range into mid-bass, bass and sub-bass categories, it doesn't have a very special emphasis on a specific range, but I have to mention that "bass" section have more presence compared to its "sub-bass". 
 
In the end, I feel that Brainwavz really nailed the sound signature and they have created a very good sounding iem which "non-basshead headfiers" may enjoy much. Although S3 is priced lower than the S5, I rate its SQ higher than it. This is definitely the best sounding Brainwavz iem to my ears (compared to S1 and S5, never had Jive and S0).
 
Hissing:
Since the sensitivity of the iem is very low (16ohm) the S3 will not forgive your sources hissing capabilities. So a DAP or DAC with a less (or zero) noise background will be a better match. But I don't want to mislead the reader here, the S3 doesn't hiss like crazy. I couldn't be able to hear the hiss while playing the music when the S3 was connected to my most hissy DAP (Meizu M3). It was only detectable at the end of the (or between) songs...
 
Brain and Driver Burn-in Period:
According to my listening and burn-in experiences this iem needs at least 25h of burn-in. After this period iem sound mostly settles. Especially bass section tightens-up and the iem sounds fuller and slightly warmer to my ears. If you're not a believer of burn-in, then please skip this section...
 
Selected Comparisons With Some Other IEM's:
 
Havi B3Pro1
B3Pro1 stage is wider, highs to midrange sounds slightly cleaner, all freq ranges are equally presented (most neutral iem in my book).
S3 sounds slightly (a hair) veiled, slightly less airier, bass section is slightly on the north of neutral compared to B3Pro1. But the bass is really easy to get out of the S3 because unlike B3Pro1 you don't need to have a powerful source. Need of a powerful source and good sealing wide-bore eartips makes Havi to reach its potential unpractical.
General Winner: B3Pro1
Winner for Compatibility with diverse kind of sources: S3
 
Sony MH1C
MH1C is more veiled, can go deeper on the bass range, more bassier. Midrange is muddier on MH1C as well.
S3 is more balanced, have the ability to go deep on the bass region but not feels bassy like MH1C. Highs and mids region are more detailed and less veiled on S3.
Both Mh1C and S3 sounds smooth on the high region (biggest similarity).
Both MH1C and S3 have comparable soundstages.
Both are equally easy to drive.
General Winner: S3
 
VE Duke
Duke is an 200 USD microdriver iem. So t is not in the same league.
Duke has wider stage, sounds airier, more detailed on the high and mid-high region. But, bass is not satisfying like its on the S3 and for some midrange might be thinner compared to S3.
Duke's highs region might be tiring after extended listen due to its extension. Duke is harder to drive.
S3 sounds fuller, warmer.
General Winner: Duke
For bass section only->Winner: S3
For smooth highs->Winner: S3
For detailing->Winner: Duke
 
Quality and Durability:
Seems that it is built like tank. All aluminum iem shells, strain reliefs, good quality and unnecessarily thick and heavy cable supports this idea. Since I didn't use the iem for a long period of time, please take my words as a grain of salt...
 
 
Value for Money:
S1 sells around 60USD, S5 sells around 100USD and S3 is around 80USD. They all have the same or very similar build quality, all have the same or very similar cable and the current S1 and S3 has the mic/remote as a plus. They all have very very similar accessories (if not the same). So thinking these very similar parts on a scale and if I say that the biggest difference is going to be through the sound; to my ears/for my liking, S3 sounds better than both previous models, even better than the S5 even if its priced 20USD more. Plus you get a mic/remote with the S3 which might be a big plus for some users. But compared to the nowadays standards -IMO- it could be better if Brainwavz lovers the S3’s price slightly to make it a more popular product.
 
Love Factor:
I have 3 levels for describing my "love" for an audio component: Low, Mid and High. My love factor is somewhere between Mid and High for the S3.
 
Availability: http://www.brainwavzaudio.com/collections/earphones/products/brainwavz-s3-earphones

 

 

Guarantee: Yes, 1 year warranty provided by Brainwavz!
 
Acknowledgements: I need to thank Pandora at Brainwavz and Brainwavz company for providing me an opportunity to review their new iem (in return of my honest opinion/review).
 
Sources Used for This Review:
LG G3, LG G3+Aegis+NX1, Meizu M3
 
Test Tracks:
London Grammar "Stay Awake"
Dire Straits "Calling Elvis"
Mercan Dede "800"
Olafur Arnalds "Gleypa okkur"
 
Test Procedure:
Open eye, A-B-C'ing with other iem's while playing music and test tones. All iem's were volume matched at 70dB by the help of a calibrated scientific grade SPL meter (UNI-T brand).  With the S3 I have tried many eartips and finally decided to use the included red-core silicone medium eartips throughout the review period.
 
Conclusion:
If S3 has slightly wider stage, slightly more airier sound and, if it didn't have that flat cable I could give 5 stars to this iem. But thinking of the cons I need to cut a star. If you're looking for a microphone bearing iem for your mobile device (especially) S3 might be a very good alternative to keep in mind. I rate this iem's sound quality above both S1 and S5. It's non fatiguing highs, detailed enough high-mid range and good bass presentation without being bloated and, add a slightly above average sound stage you have a very good iem.
 
I need to drop an information line here: Before your final decision please check every reviewers opinion and the dedicated S3 thread, because there might be some sample or perception variations. I just wanted to make the readers aware of the situation. For my S3 review sample nothing is wrong with the intended SQ of the S3.
 
Thanks for reading!
 
Be with music, feed your soul!
 
Safe Listening!

 
 
 
 
 
What is Cozoy Aegis?:
Did you remember Cozoy Astrapi DAC/AMP? Well this is the brother of it
 

Aegis (right)
 

Aegis (left) and Astrapi (right)
 
Cozoy Aegis is a DAC/AMP built inside a small and tiny aluminum shell. The team behind the Cozoy Aegis is the same team as the famous Shozy Alien DAP. Aegis decodes natively up to 24-bit/192kHz on IOS/Android devices along with an advanced digital volume control algorithm.
 
About Cozoy Company*: Cozoy was incorporated in 2014 with a simple vision - to strive for ultimate sonic reproduction and functionality. Our designs are crafted with selected metals of highest quality, fusing with leading designs. Design philosophy: Cozoy's product design philosophy is to create fine metallic builds, with leading innovations on circuitry and implementations of cutting-edge metal processing techs. Clean circuitry design with minimal features that affect sonic quality, strong shielding on cable, sockets and the build itself are all implemented to perfect sound reproduction and durability of our offerings. In Cozoy we employ finest materials and designs, to ensure utmost fidelity and usability. Our team consists of specialists majored in industrial designs, acoustics design and various fields, together we hope to bring to the crowd audio excellence and long lasting designs (*Information from the Cozoy official web page).
 
About Shozy Company**: Consist of an experienced engineering and designing team Shozy offer exquisite products of exceptional design, build and sound quality. For years, the team has been developing audio equipment and providing oem solutions for various audio and tech companies, striving for engineering excellence and accuracy in sound reproduction. In 2012, the team decided to apply its expertise to portable equipment (**Information from the Shozy official web page).
 

 
Features of Aegis*:
High output with refined volume steps, suitable for iem/ ciem users.
Isolating decoding and analogue stage from main system.
Scratch-proof military grade CNC chassis for enhanced shielding.
Maximized board area for circuitry, no functions which introduce disturbance to the layout.
Cross platform micro usb input support.
Decodes natively up to 24/192 on IOS/Android.
Real-time digital correction with no audible delay.
Advanced digital volume control algorithm.
(*Information from the Cozoy official web page).
 
A little about me:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment non-serious period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. From new age to classicals, hard rock to pop, instrumental to electronic I enjoy diverse kinds of music types. For further, please check my profile.
 
Availability:
You need to check your local/regional dealers first because Cozoy (<--click the link in blue) will not sell directly from its web site if you have a dealer in your Region/Country. Unless you don't have a dealer you can purchase the Aegis directly from their web page: http://www.cozoyaudio.com/aegis/  
The pricing should be around 300USD... 
Please ask Cozoy customer service first in order to get the latest pricing because this device is very new.
(EDIT: Penon Audio now sells Aegis: http://penonaudio.com/COZOY-Aegis?search=aegis  )
 
For the Astrapi and Lancea I can highlight a seller which ships from China: Penon Audio. They have great customer service and very reliable feedback in our community.
I also buy most of my hifi goodies from Penon but currently it seems that they stock only Shozy Lancea and Cozoy Astrapi.
 
Equipments Used as a "Source" for This Review:
I have obtained my Aegis directly from Cozoy.
I am in no way affiliated with Cozoy/Shozy and this review is my honest opinion of their new DAC/AMP.
For this Aegis review I have used 3 different sources and deeply tested the Aegis with my:
LG G3 (D855) Mobile Phone, Samsung Galaxy TabS 8.4" Tablet and PC running on Windows 7.
 
HP/IEMs Used with Aegis:
Havi B3P1, Sony MH1C, Meelectronics AI-M6, KZ ACME, Koss PortaPro (75ohm resistor and Kramer modded, Canare recabled), Beyerdynamic DT150 (Brainwavz Pleather Angled Earpads), Philips Fidelio X2 (Stock Cable), AKG K7XX (Audio Minor Pure Silver cable).
 
Aegis Package and Included Accessories:
Aegis have a small, minimalist box design and includes the below accessories with a guarantee statement/technical specs card.
 

 
 

Accessories are: USB to MicroUSB Cable, IOS lightning connector and Micro USB to Micro USB short cable
 
Compatibility with Jack Types:
Aegis headphone out (HO) is compatible with standard 3.5mm stereo jacks and you can even get sound through the balanced 3.5mm jacks (4 pole connector, tested with KZ ACME). Also Microphone bearing iem jacks are compatible (again 4 pole connector, tested with Sony MH1C). But you won’t be able to communicate through the Microphone of the headset. Aegis HO out is not designed to give a real balanced sound.
 

 
Mobile Phone and Tablet Tests:
I have compared headphone out (HO) of the LG G3 (D855, 32GB + 128GB MicroSD Card, Android Lollipop 5.0 - 3.4.0) with the Aegis headphone out.
 
For tablet and phone tests I have tried: USB Audio Player Pro, Noozy Player, Poweramp (Paid version) and Hiby Music Player, Spotify Applications.
 
Before the tests I always volume match my equipments by the help of a calibrated and scientific grade SPL meter and use 1khz test tone. I adjust the volume to 72dB.
 
 
OK, here we go, compared to the LG G3 headphone out, Aegis has: Better clarity, more holographic soundstage, slightly wider soundstage, slightly more dynamic sound, better separation and layering, better defined (and slightly more) and tighter bass. I certainly prefer the Aegis sound over the LG G3 headphone out which really surprised me (because Astrapi and LG G3 sound were close). So I have decided to try something different (because this little fella whispered to my ear and tell me to connect it to a desktop rig   -Check the below photo-
 

With this combo I was blown away by the sound! Unbelievable... I don't need anything more   (...at least for now  
Superb quality sound that should only available through a desktop DAC or from a hi-rez DAP!
Cozoy put some kind of "MAGIC" in this tiny device! Wow! Just wow!  Sounding so holographic with tight bass, linearity and details, separation and layering of instruments, imaging, everything were so beautiful that I couldn't resist listening the setup all night -in my bed
 
Details for the above photo: LG G3 + Noozxoide EIZO-rewire™ PRO App (some tweaks for sound) + Noozy Player App + Cozoy Aegis + Audio Minor Triple Cryoed Pure Copper Interconnect + Darkvoice TH336SE (FitzMod + vintage Zaerix 6AS7G and Philips 6SN7 tubes) + Beyer DT150 + Brainwavz Pleather Angled Memoryfoam Earpads = Shivers Down The Spine
 
I have to mention that there is a "con" for the Aegis which may "seem" to limit its use with amps (which is in reality not a con, read and learn why...).
 
Aegis doesn't support a true Line-out functionality*** (***This is information is officially approved). Somehow I manage to get great details when I first audition it... So I thought that it have a lineout capability like Astrapi.... May be the songs didn't have enough bass department to make the sound distort at first trials... Or may be the pairing didn't cause that... But Aegis certainly distorts -the sound- when I try LG G3 and PC connections when I "max" the volume. So it is safer to use the volume lower than 70% if you intended to use the Aegis with an amp. If you're not going to use an AMP connected to it you won't be passing more than 20-30% volume because it is really powerful, even for an 250ohm full sized headphone!
 
It is interesting that even without a true line-out functionality Aegis sounded better to my ears compared to the Line-out function activated Lancea (by pushing the volume max, which basically bypasses the amp section of Lancea).
 
While listening to Mercan Dede "800" and The Neighbourhood "Alleyways" with Fidelio X2 Lancea delivered excessive energy to the bass section where Astrapi were slightly bright for my tastes. I found the sweet-spot with Aegis.

 
While listening to Lana Del Rey "Born to Die" detail and soundstage were great with the Cozoy/Shozy trio but female vocals were best pronounced with Aegis and Lancea. Again, for my tastes Aegis took the lead. When I plug my B3P1, this time Lancea took the lead because it has given the B3P1 the fullness of the bass section that it craved from AMP's.
 
The volume adjustments are easy on an Android device. There are more steps compared to most of the IOS player apps. On the below photo left hand side is the LG G3 headphone out volume where I prefer to use with B3P1 (direct LG G3 HP out). On the right you see the Hiby music player volume (sound matched) while using the Aegis in the chain. Yes, Aegis is no joke, un-necessarily powerful! I couldn't raise the volume beyond that with an B3P1!
 

 
 
On the below photo you see the volume adjustments of the Astrapi (left) and Aegis (right). These are the levels of the volume when they were matched.
This time I am showing you the Spotify app interface.
 

 
The good part with Android is you have more volume steps to fine tune. Even if you don't have very fine steps there are great APP's like WheelVolume on the Google Play Store which you can download for free! WheelVolume adds a manual looking volume knob (touch interface) on the left hand side of your phone. Also most Android phones have interchangeable battery options and microSD card slots which iPhone doesn't have. OK, before the "stones" start to hit me from the IOS users I am stopping here
 
 
 
PC/Laptop Sound Tests and Comparisons With Some Other Portable DAC's:
I have compared Cozoy Aegis with GO720 (headphone out used), Shozy Lancea and Cozoy Astrapi.
I have used Foobar 2000 and Spotify as players.
Throughout the comparison phase I have found the Aegis to suit best for my needs/preferences. Each DAC/AMP has its own strengths and weaknesses.
Lets start with the Astrapi which sounds crisper to the others. Seems like the mid-treble region is slightly shifted on the Atrapi. Bass department has slightly more body on Lancea compared to the other Cozoy products. Also on Lancea high region were slightly smoother than all the others. Overall I feel that Lancea has more refined sound where Astrapi is more energetic and nervous. Aegis sits in between those characters which has the best parts of these two Cozoy/Shozy DAC's. Aegis and GO720 are equally capable devices to my ears. I feel that Aegis is slightly better for overall SQ where I found the GO720 to be slightly more dynamic (a hair more) and more powerful.
 
While comparing Lancea, Astrapi and Aegis it would be easier for me if I tell you that Lancea sounds like a CKR10, where Astrapi is like CKR9 and Aegis is in between (best of both worlds) like the CKR9LTD!

Top to bottom: Aegis, Lancea and Astrapi
 
I have compared the trio directly connected to my Fidelio X2, Koss PortaPro, DT150 and B3P1. Astrapi delivered slightly more high region energy compared to both of the others. I have used Zaz “Les Passants” track for this comparison section (mainly, others are mentioned in the paragraph). For the smoothest high region Lancea took the lead where Aegis had a balance between the two. For detail retrieval Aegis took the lead (delivering better micro details). But Lancea was also very good in this aspect. For the mids department to my ears it was a tie between the three. Aegis delievered much more depth and dynamic range to the mids and general sound; where Lancea delivered the smoothest and most grain free mids and highs –especially for female vocals- (eg. London Grammar). For the bass section it was a tie between the Aegis and Lancea. Both have tight and good pronounced bass. Lancea certainly have the most bass out of the three Cozoy/Shozy models. Astrapi bass was not far behind for its quality but to my ears Aegis have the tightest bass followed by Lancea and Astrapi. I love the bass detail and texture of both Aegis and Lancea where the depth of the soundstage and layering capabilities brought the Aegis bass to a very great listening experience.
 
For general sound quality I can say that a non-trained ear/brain can easily tell that these three devices sounds similar rather than different and belong to the same company. But I prefer Aegis because of the evaluations in the above paragraph. Aegis have some shortcomings which you have to face while using it. It doesn’t provide a line-out function and start to distort on very high volume (depending on where you connect it to, volume above 80% and especially with tracks that have complex passages and bass, you’ll start to notice it). Also Aegis produces more heat compared to Astrapi and Lancea. Also Aegis eats more battery which makes it less preferable device with the Phone/Tablet.
 

MicroUSB port side of Astrapi, Lancea and Aegis (left to right)
 

3.5mm stereo plug side of Astrapi, Lancea and Aegis (left to right)
 

Side view of the trio: Astrapi, Lancea and Aegis (notice the clip design makes the Astrapi fatter,
I really don't prefer the clip design and love the new approach of Shozy/Cozoy)
 

Comparision for size: GO720, Aegis, Lancea and Astrapi ....and my cup of "Lavazza" French Press (love to drink coffee while enjoying the review writing process and it takes really too long for me to write down/shoot all those... So I'd better be with some coffee
 
Between all these devices I love the form and design of the Aegis followed by the Lancea. The size, excessive heating and absolute need of an external battery makes the GO720 less preferable. Also I couldn't use the GO720 through my phone without the USB Audio Player Pro Application. The others worked great with every APP I have tried. Since I don't have an DSD music archive carrying a GO720 is out of question for me! I will take Aegis in every situation.
 
OK, lets wrap the things up:
 
General Sound Quality:
Aegis ≥ GO720 ≥ Lancea > Astrapi
( A small explanation needed here: Well it was really a tie between Aegis and GO720. Also, Lancea and Astrapi were not far behind. These four devices are really capable of pushing that digital data in to analogue sound in a beautiful way)
 
Soundstage:
Aegis ≥ GO720 = Astrapi = Lancea
 
Warmness (warmer sounding DAC takes the lead):
Lancea ≥ Aegis = GO720 ≥ Astrapi
 
Portability (size, weight; lighter, smaller is better):
 
Astrapi = Lancea < Aegis < GO720
 
Battery/Power Needs (Consuming battery of the source-Phone/Tablet):
GO720 > Aegis > Lancea = Astrapi
 
Heat Production (Less heat production is better; temperature of the devices measured under controlled room conditions at 25^oC; values are "mean"):
Astrapi (28^oC) < Lancea (28-29^oC) < Aegis (35-37 ^oC) < GO720 (42 ^oC)
 
EMI interference:
Aegis=Lancea=GO720=Astrapi
 
Accessories:
Aegis=Lancea=Astrapi>GO720
 
Decoding Capability:
GO720 (up to 384 kHz / 32 bit, DSD and DSD2 (DSD64/128)) > Aegis (up to 24/192) > Astrapi (up to 16/44.1) = Lancea (up to 16/44.1)
 
Price:
Astrapi<Lancea<GO720<Aegis
 
**** Aegis = 300USD, GO720 = 240USD, Lancea = 179.90USD, Astrapi = 129.90USD
**** Prices are not exact, may differ from seller to seller.
 

 

 

Cozoy/Shozy Triology!
 
Break Down and Evaluation of Some Factors:
 
Value for Money:
Hard to tell… If you want the best sound and don’t care to pay some extra USD then definitely Aegis is the winner. But if you care about the heating and battery consumption then Lancea takes the lead. I wouldn’t say one device is substantially better then the other (sound-wise). But each of them have some better strengths compared to the other. But if you need a great sounding device and don’t care battery consumption and heat production and if you like to decode DSD files then you are left alone with the GO720. If you need airier sound with some high region then Astrapi is great for the price.
 
Love Factor:
This term is new in head-fi (I prefer to use it). "Love factor" is very "personal taste" dependent and one should take care of this factor as a grain of salt (but if you ask me it's the most important factor). This factor summarizes my liking of sound quality, comfort/ergonomics, durability, features, aesthetics, etc. Love factor levels are: Poor, Moderate, High.
 
So "love factor" for the Aegis is high for me! It is so high that I have ordered an Xiaomi 5000mah Slim Powerbank to attach the combo on the back of a hybrid LG G3 case (using UHU Patafix Gum stickers).
 

 
I have also ordered a flat aluminum case for this purposes. If I want to switch to the Audiophile personality I will simply swap the phone cases! Thats all! 
 
BTW: I am planning to make my own Y split cable. A shorter and tidier one will eliminate all that mess
 

 
Do you know?: LG G3 is said to support up to 2TB microSD cards in the future. Why do I need anything more than my phone, music archive and Aegis?
Add a slim external battery backup and an AMP with a fine volume adjusting knob, I am ready to escape from the city!
If I want to go minimalist without that mess I can always use only the Aegis.
I have many options to choose from
 
 

 
Burn-In (brain/device):
From my past experiences I believe (or noticed) both burn-in types. But it is hard to tell Aegis benefit from burn-in. If it benefits it is very minimal and hard to notice. Generally I advise 10-15h of burn-in for any DAC/AMP before making your conclusions. Mine have above 30h of use. PS: You don't believe in burn-in, then skip this section
 
EMI (Electromagnetic Interference):
I didn't notice any electromagnetic interference (EMI) during the review period when I used the Aegis connected with my LG G3. IMO, EMI shielding is excellent for this DAC/AMP! Anyone who is getting EMI from Aegis should have a very high SAR value phone or using a not so well shielded microUSB cable.
 
Heating:
I have measured the temperature with a calibrated IR temperature meter tool.
Room temperature were measured from an aluminum object which doesn't produce heating and it was measured as 25^oC .
Generally the heating of the Aegis were on the acceptable levels. It didn't pass 37^oC  during my tests and generally stayed at 35-36^oC. But buyers should be aware that the device is producing some heat.
 
Battery Consumption of Home Device:
Since Aegis doesn't have its own battery it is expected that the device should drain your Tablet/Phone battery. I have to say it drains the battery fast. During my tablet tests with Samsung Galaxy TabS 8.4" this little fella sucked 10% of the Tablet battery every 30 minutes. So expect to get 5h of use with your tablet. I did the tests under these conditions: Wi-Fi: off, Bluetooth: off, No any other App use and screen were turned off. Is the battery consumption more than a GO720?: No. Is the battery consumption more than Lancea and Astrapi?: Yes.
 
So if you intended to listen 30 min - 2 h of music with this device (daily) it is probable that you won't need an external battery backup. But if you intended to use the Aegis longer, you'll need external power and a Y splitter USB-OTG-Power cable to continuously run this device from your Phone/Tablet.
 
Durability:
Military grade CNC machining & advanced surface treatments are easily noticed and appreciated…
I believe it can live for a long time (but only time will tell the truth). I also like the top and bottom parts because unlike Astrapi, Cozoy used aluminum plates there too (was metal painted plastic on Astrapi).
 
Design:
When I first opened the box hold the Aegis I tell to myself, oh my, this is a very good looking and robust feeling DAC/AMP!
 

 
When I inspected it closer, I have started to see that every detail was beautifully crafted. General design directly reminded me of Shozy Alien. The groove(d) parts on the sides made it really easy to grab. The corners may seem sharp at first look, but when inspected closer it is easy to see that Cozoy treated evey side and corner very carefully to filed (or rubbed). So no sharp edges here… I love the fact that Cozoy didn’t include a clip on the back side. On Astrapi there was a clip and it doesn’t have much use for me... I like (prefer) the slim, flat body design. I really like the single green led on the front face which shows me whether the Aegis is recognized by the attached device or not (or whether if its operating or not). In general Aegis continues the minimalist approach of Cozoy.
 

 

 

3.5mm stereo plug side
 

MicroUSB port (notice the corners, finely trimmed)
 

Back side
 
Compatibility:
Aegis is compatible with Android, many IOS devices and computers. It is recognized by my PC, Tablet and Phone faster than Lancea, Astrapi. Near no lag which I really appreciate! With the Lancea and Astrapi you need to wait for 5-20 seconds in order to get them recognized by the Phone/Tablet. There is a single con on this section: For computer use, you need to download and install the Aegis driver from the Cozoy Aegis web page. I wish it was plug and play for computers -like Astrapi and Lancea.
 
USB Support:
I could only get Aegis to work with my computers USB 2.0 port. No support for USB 3.0 port in my experience.
EDIT: After the current Driver installation it supports USB 3.0 !
 
Hissing:
This part mostly depends on your system. When I try Aegis from my Android devices it was quiet. Can’t say dead quiet but hissing was not bothering me. But when I plug it to my Asus notebook hissing became a problem especially with high sensitivity hp/iem’s. So anyone with high sensitivity hp/iem should think twice before jumping on this great sounding device, only bevause of the hiss. The hissing levels are near equal to my ears between Aegis, Lancea nad Astrapi. So its better for guys on to work for this issue. But when I use Havi B3P1 iem, Koss Porta Pro, AKG K7XX, Beyerdynamic DT150 or even Philips Fidelio X2 hissing was not audible (unless you raise the main volume over excessively for some of the mentioned hp/iem's).
KZ ACME and Mee AI-M6 iems made me aware of the hissing of Aegis...
 
Remote Control and/or Microphone/Incoming-Outgoing Call Support:
NO! Aegis does not support these functions directly.
 
Guarantee:
Cozoy provides 1 year warranty for the Aegis. Big applause to Cozoy for this!
 
Specs (from the product page):
Headphone impedance range: 16-100 Ohms
Output Power: 60mW at 16Ω;35mW at 32Ω
THD:≤ 0.1% , 1KHz SNR: 109dB at 3.3V power supply
Resolution: 24Bit/192KHz sampling
System power current :10mA~95mA max
 
Aegis Size and Weight Measurements:
 

Length: 5.8cm
 

Thickness: 0.7cm
 

Height: 1.9-2.0cm
 

Weight: 13 g
 
Final Thoughts:
It was one of the "rare" moments that I got really excited from an audio device while auditioning the Aegis! I was getting great details, separation of instruments, holographic soundstage, very linear sound response, smooth highs, finely textured and tight bass, natural tones, overall a great pleasure to listen! Somehow the guys at Cozoy managed to put some MAGIC inside this little fella. And this is the first time that I feel a device to not only equal but slightly surpass the sound quality of my trusty GO720. I am really impressed. What I am now wishing from Cozoy is a high/low gain switch, less battery consumption and more black background device to work better with high sensitivity iem/hp's. If they manage to produce such a device that would threaten not only the portable DAC market but also the DAP market!
 
Last shot!
 

 
                                            THANKS for READING/WATCHING !     
 
 
Notes:
1- Most of the terminology used in this review is depending on this excellent write-up by multiple headfiers: http://www.head-fi.org/a/describing-sound-a-glossary
 
2- Specifications and/or color of the equipment covered by my review may change in the future by the manufacturer (without my knowledge) and these changes may not be reflected inside the review in the future (although I prefer to update).
 
Subscribe : Baycode's Upcoming and Completed Reviews News-feed Page 

As an Audiophile; if you're left alone on a desolate island and if you are asked to bring only one device (to connect to your phone and HP)
which DAC/AMP would you bring with you? My answer is simple. Read-on and you'll understand why
 

 
What is Cayin C5DAC (Aka the Spark)?:
Zhuhai Spark Electronics Equipment Company (producer of Cayin branded DAC and AMPs) is an experienced and well established hifi equipment manufacturer from Guangdong/China. Cayin C5DAC is the Zhuhai Spark's recent DAC/AMP offering (now you know where the Spark name of this DAC is coming from . It is a Digital Audio Convertor (DAC) and an Amplificator (AMP) built under an aluminum shell. Besides these features C5DAC can be used as an external battery backup to charge tour Phone or Tablet. But you’ll need genuine Apple USB camera adapter for IOS devices (not included in the package). According to the specs Cayin C5DAC supposed to work with; IOS and Android (OTG Function) system devices as well as PC/Laptop. Cayin C5DAC supports: 24Bit/96khz sampling, very low total harmonic distortion (THD+N: 0.02% @1khz),  signal to noise ratio 101dB (A-weighted). C5DAC bears an 3700 mAh (3.7V) built-in rechargeable battery. Output power of the unit is rated at 300mW + 300mW (32ohm load). Battery life on the specs says that 19 hours when used as an AMP and 9hours when used as a DAC (under 32ohm load). Also, 4.5h for charging time.
 
A little about me:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment non-serious period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. From new age to classicals, hard rock to pop, instrumental to electronic I enjoy diverse kinds of music types. For further, please check my profile.
 
Availability:
C5DAC can be obtained from various sellers for 215 USD (period).
Here is a reliable seller: http://penonaudio.com/Cayin-C5DAC
 
Equipments Used as a "Source" for This Review:
I have received Cayin C5DAC (Spark) directly from Cayin as a “review tour sample” and the unit is going to be passed to the next reviewer in UK. There were a few lucky people selected for the World review tour of the C5DAC and only 2 persons were selected from the European part of the World to review this new device (HeadFi members @Baycode (me) from Turkey and @Ra97oR from UK). I haven't received anything from Cayin other than the C5DAC. I am in no way affiliated with Cayin and this review is my honest opinion of their new DAC/AMP.
 
For this C5DAC review I have used 3 different sources and deeply tested the C5DAC with my:
LG G3 (D855) Mobile Phone, Samsung Galaxy TabS 8.4" Tablet and a PC.
 
Note: My first C5DAC review unit had charging problems and couldn't stream Spotify properly from my tablet. So Cayin was kind enough to send me another unit.
 
HP/IEMs Used with C5DAC:
Havi B3P1, Sony MH1C (thanks to my friend @peter123 ), Meelectronics AI-M6, KZ ACME, Sennheiser PX100ii, Koss PortaPro (75ohm resistor and Kramer modded, Canare recabled), Koss KSC-35 (75ohm resistor and Kramer modded, Mogami recabled), Beyerdynamic DT150 (Brainwavz Pleather Earpads), Philips Fidelio X2 (Stock Cable), AKG K7XX (Audio Minor Pure Silver cable), AKG K340 Electrostatic-Dynamic Headphone, Fostex T50RP Orthodynamic Headphone (modded, recabled with Mogami).
 
Unboxing:
My review unit came in a double wrapped cardboard. The units original box was resting under these cardboard layers, so it was non-damaged during shipping.
 
Cayin used recycled cardboard (possibly) without any ink/paint. I like the raw-environmental friendly approach for the box design. There was a paper belt on the middle of the box which bears the Cayin C5DAC color photograph (on the below). Whole box is covered with a transparent vacuum nylon (below, first photo).
 

 
 

Box front view
 

Box back view
 

Inside of the box
 

Mmmm, under those recycled cardboard what a sexy looking DAC/AMP!
 

Very appropriate amount of accessories including 2 blue silicone bands, 4 silicone adhesive foots (white square on the above photo), 
1 digital/coaxial cable, 1 short microUSB to microUSB cable, 3.5mm to 3.5mm stereo interconnect cable (for amp),
one long USB to microUSB cable for charge and PC/Laptop connection, a carrying pouch and a user manual in
English (on the below photo). I certainly prefer Velcro attachment over the silicone bands though...
 

This pouch can prevent your C5DAC to get scratched. I wanted see a Cayin letter (also) on it but no chance...
 

C5DAC front view
 

C5DAC side view (high/low gain and bass boost switches)
 

C5DAC side view zoomed to show the high/low gain and bass boost switch better
 

C5DAC bottom view (coax out, microUSB port for DAC, doubles as a battery backup charging out port,
on the far right is the Power in microUSB port)
 

There is a "reset" button hole in case everything gets wrong with the DAC/AMP. I never
used this feature
 

Volume pot back view (protected under a plastic cap which is covering all the TOP part of the unit).
It is possible to apply some force and remove this semi-transparent cap easily
 

Volume pot front view, the groove there serves as a window and indicator of the volume setting.
Volume indications are from "off" position to number 9 (max)
 
 
C5DAC Package and Included Accessories:

1. C5DAC AMP
2. USB Charging Cable
3. 3.5mm to 3.5mm audio cable
4. 1 pair of rubber bands
5. USB 2.0 to Micro USB short cable
6. 3.5mm to coaxial cable
7. 4 adhesive silicone foots (small but important detail: these will prevent your unit to get scratched while stacking with a phone or while resting on a surface)

 
Compatability with Jack Types:
C5DAC headphone out (HO) is compatible with standard 3.5mm stereo jacks. But you can get sound even if your 3.5mm jack is balanced type (4 pole connector, tested with KZ ACME) or have a built in Mic (again 4 pole connector, tested with Sony MH1C). But you won’t be able to communicate through the Microphone of the headset. And HO out is not designed to give a real balanced sound (as far as I know).
 
 
Mobile Phone and Tablet Tests:
I have compared headphone out (HO) of the LG G3 (D855, 32GB + 64GB MicroSD Card, Android Lollipop 5.0 - 3.4.0) with the C5DAC Headphone out.
 
All the testing done (covering tablet and PC tests as well) at low gain and bass boost off (unless notified).
 
To my ears C5DAC has: airier sound, slightly wider soundstage, slightly more vivid sound, slightly more separation and layering, slightly better defined bass.  Other than these both of the devices sound qualities are "very close" rather than being different. After the Lollipop update LG G3 headphone out became something really special to my ears. For anyone interested, LG G3 uses Cirrus Logic DAC chips. Sound quality difference did not warrant me to use the C5DAC "on the go" with my iem's, especially in the noisy environments. For quiet places and for critical listening (especially with full sized HP's) I would prefer to use C5DAC with my phone.
 
Before pairing the C5DAC with your phone, you may want to stack the C5DAC with your phone. So what's the solution of the Cayin?: 2 cheap looking blue silicone bands!
I will show and explain you why not to use these bands with your smartphones (YMMW).
 

These included blue silicone bands neither look good, nor matches the elegant look of the C5DAC!
I never prefer these bands for any device. I wanted to show you how cheap it looks. It also interferes with the
touchscreen menu in a bad way...
 


So I prefer to use 3M circular self adhesive Velcro coins
 

First I stick the more stiff hair bearing velcro coins on the C5DAC. Then I place the softer
coins on the top of their mating parts leaving the adhesive part to be stacked on the back of my phone
case.
 

Then I align and push the C5DAC on the back of my phone
 

Ok, as you see the other circular Velcro coins are sticked to the back of my phone case
 

When you remove the C5DAC you'll see that the Velcro coins (softer ones)  are left on
the back of the phone case (or cover)
 

Top view
 

Stacking done, microUSB cable attached. Ready to rock

Looks very clean too!
 

My screen is mine! No bands to interfere!
 

 

Bottom view
 

Cayin, you should consider including 2 different length microUSB cables. The included one is
short for non-stack operation and long for a stacked operation. I want to see one shorter
U shaped or 90 degree microUSB cable and a better quality, slightly longer microUSB to microUSB
cable. Yes, these may purchased later, but why not include? Cheap accessories but happy customers, right?
Also, I never saw my U shaped design in any store or internet... (below image).
90 degree angle jack "5cm long cable" is also a good alternative...
 

This is my design of a microUSB to microUSB stack cable (made using photoshop).
 
 
Alternatively you may try a 90 degree microUSB to microUSB  cable from e-bay: http://www.ebay.com/itm/301228419677?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
 

Also, I advise the guys at the Cayin to re-design the microUSB port on the bottom of the DAC unit and move it on the center -for the future models.
This is may be not a big problem but you know, nearly every mobile phone/tablet on the market today has the
microUSB port on their bottom-center. Also the included microUSB cable quality looks/feels cheap.
It protrudes from the DAC bottom and doesn't look safe (although it never get out accidentally). But it sits
well on the bottom of a LG G3. Another complaint: One of the microUSB jack head direction have to be reversed.
If I do not want to reverse it (without making a twisting action on the cable) I have to attach the DAC in a reverse
position, leaving the volume pot readout slot and battery level indicator leds between the phone and the C5DAC.
This problem can be remedied by making a twisting action on the microUSB cable but I was afraid of tearing
(or stressing the cable). Little design faults on a cheap accessory caused some problems... 
Ok I am cutting the complaints here because it can be remedied and not on a deal-breaking level...
 

Top of the unit when the volume knob twisted and the unit turned on. This little led tells you that
C5DAC is ready to rock your headphones... Left hole is headphone out, right is the audio-in for the AMP section
(you need to use 3.5mm to 3.5mm stereo interconnect if you like to use the unit as an AMP alone)
 

The little space held in between the phone and the C5DAC also serves as an air/ventilation space.
You can separate the phone and the DAC anytime you want. Velcro is safe for this kinds of applications.
Alternatively you may use 3M DualLock for this stacking purposes...
 

 
I have used my Samsung Galaxy TabS 8.4" (loaded with Samsung 64GB microSD card, upgraded to the Android Lollipop) for tablet test.
 
It will be cumbersome to write down sound differences for each of these so I prefer to write my general impressions of the sound which is reflected through all the equipments I have used. I provided specific information for some of these hp's/iem's in my writing as well...
 

 

 

 
I did many trials with C5DAC for tablet tests... When Philips Fidelio X2 is connected with C5DAC through this setup, Peter Gabriel “My Body is a Cage” bass hits with more authority, and with better definition compared to the TabS headphone out (HO). But while listening to the first 10 seconds from the Zaz “Les Passants”, X2 brought the highs on to the ear-fatiguing level through C5DAC. For this track, high regions were less gritty through TabS HO. I feel that the C5DAC slightly accentuated everything compared to the TabS HO. With C5DAC attached, I hear slightly better defined: highs, bass, details, soundstage and also slightly more vivid sound in general. This may result in either a good or bad way. If your headphone or the recording has a “not so good treble emphasis” and in general has a high region which can be called close to “sibilance” C5DAC may accentuate these features. For most genres (especially instrumental, new age and Jazz) I prefer C5DAC over the TabS HO. When a more power demanding headphone such as AKG K340 (400ohm) is paired with C5DAC, the difference between the HO of the TabS and C5DAC became more clear.
 
PC/Laptop Sound Tests and Comparisons With Some Other Portable DAC's:
 

Compare the size with other DAC's on the test
 
When connected with PC, I have compared Cozoy Astrapi, GO720 (0.47OHM headphone out of GO were used) and C5DAC. When K7XX used as a headphone,  Grogery Porter “Water Under Bridges” sounded with more liquid high region through Astrapi, where C5DAC  sounded slightly more clear and vivid with a slightly better soundstage. GO720 sounded in between the two giving a more balanced sound in general. When I play the Kronos Quartet “Tusen Tankar”, again C5DAC delivered better clarity, instrument separation and an almost holographic soundstage compared to Astrapi. Astrapi delivered slightly (a hair only) smoother highs region. IMO the only better thing that Astrapi does over the C5DAC is that. Also I needed to almost max the sound from the computer in order to reach a good listening level with Astrapi (when K7XX plugged as a HP), where the volume level between 3-4 was appropirate for C5DAC (computer and player software maxed). OK so where the GO720 sits in this comparison? It sits in between the Astrapi and C5DAC. General sound characteristics of the GO720 is like a love child between the two (impressions through K7XX). Smooth highs region, warmer sound, good instrument separation and clarity. But for the soundstage C5DAC is slightly better than both (IMO). For the clarity par GO720 and C5DAC goes to to toe. C5DAC wins on the hissing department over both of the other DAC's. Especially when the 32ohm Fidelio X2 or AI-M6 is paired with the mentioned other DAC's, hissing becomes a problem. With the C5DAC you can hardly hear that background noise, though the unit doesn't have a completely black background as well...
 
When playing Miles Davis “Stella by Starlight” untill the 50sec part everything went very good with C5DAC. Right at the 50th sec that trumpet octave and volume raised in the track and the sound became unbearable with the C5DAC for me. GO720 and Astrapi were slightly better for this track part. Especially for this song I prefer GO720 over the other 2 DAC’s.
 
Probably by the help of the the airy sound and slightly boosted lower treble (and slightly less present midbass -Compared to the other DAC's on my Lab-), C5DAC soundstage percieved very wide. I have to say that to my ears it is the best DAC/AMP for soundstage. If I compare it  to the DAC/AMP’s like Cozoy Astrapi and GO720 it is slightly wider. Compared to the LG G3 headphone out, again it is wider. Soundstage depth is not on par with its width though...
 
Sound is dynamic, slightly vivid and with good punch. Because of the treble response –with some certain recordings- I couldn’t enjoy the C5DAC as I enjoy them with either Astrapi or GO720 (both sounded slightly smoother and more refined for their treble). But while reading these, please remember that I am a treble sensitive person. And differences are not big. Slightly means here: A hair thick.
 
C5DAC has better seperation-layering and a hair more detail retrieval compared to Astrapi. GO720 sounds smoother and with slightly less soundstage (only by a very small margin). For overall sound it is a tie between GO720 and C5DAC to my ears and with my gears. For purely on sonic performance I still think that GO720 still got the edge (by a small margin). The second runner will be C5DAC and the third runner will be Astrapi. But if I put size scale on the table Astrapi with its incredible small footprint and lightweight will take the lead. For system compatibility Astrapi again takes the lead.
 

 
 
 
 
Wrapping the Things Up:
I know it is not easy to evaluate such different devices. They all share a common thing as being a DAC/AMP, but you can’t use the amp section of the Astrapi and GO720 separately (when needed) like the C5DAC. C5DAC serves as a DAC/AMP, AMP and DAC (If you use the coaxial out you have the option to use the DAC section alone). And as being a self battery operated device C5DAC didn’t attempt to consume your phone battery. Besides this it can charge your Tablet/Phone if needed!
 
Ok, here we go, Wrapping the things for the C5DAC as a DAC/AMP
 
General Sound Quality:
GO720=C5DAC>Astrapi
 
Soundstage:
C5DAC≥GO720≥Astrapi
 
Airier Sound:
C5DAC>GO720≥Astrapi
 
Warmness (warmer sounding DAC takes the lead):
GO720≥Astrapi≥C5DAC
 
Portability (size, weight; lighter, smaller is better)
Astrapi>GO720>C5DAC
 
Battery/Power Needs (Consuming battery of the source-Phone/Tablet; *Self battery device will always consume less)
GO720>Astrapi>C5DAC*
 
Heat Production (Less heating device takes the lead, temperature of the devices measured under controlled room conditions at 25^oC and are mean values, for max values check the text)
Astrapi (28 ^oC) > C5DAC (32 ^oC) > GO720 (42 ^oC)
 
EMI interference
C5DAC=GO720=Astrapi
 
Accessories
C5DAC>Astrapi>GO720
 
Decoding Capability:
GO720 (up to DSD) > C5DAC (up to 24/96) > Astrapi (up to 16/44.1)
 
Price (Cheaper one takes the lead)
Astrapi>C5DAC>GO720
 
Value for Money
No winners!!! Each to their own!!!
 
 
Cayin C5DAc When Used As An AMP:
I did compare the C5DAC's AMP section to my Topping NX1 and ShelbrookAudio MiniHead Signature which have similarities. Shelbrook also have ALPS volume pot, WIMA HiFi capacitors, metal film resistors and most importantly 2 BB634 opamps.
 
I have used 1kHz test tone to volume match the 3 amps (volume matched at a comfortable and loud enough level for me which was 72 dB during the “test/review” period).
While listening to the Jason McGuire “Bulerias”, I sense more space with C5DAC. But the highs are on the limit for starting an earfatigue for me when the C5DAC amp section is paired with a K7XX.
When I compare the other amps, Shelbrook MiniHead Signature delivered the most smooth highs, but the smallest soundstage. I can’t say it is small when I listen through it -only-, but when I compare it to the other two amps, it is... This feature delivers more "intimate" listening experience though... And when this amp is paired with K7XX, I love the sound of this pairing most.
 
C5DAC's AMP section has plenty of power even at low gain. Because of this, I hate to say that it is not very suitable to use with high sensitivity iems. But this also applies to the Astrapi and GO720. The Alps volume pot is very high quality. But moving from 2-4 the volume rises too much. Icould never use pass the number 4. AMP section is unnecessarily powerful (IMO, YMMW with different headphones). Using the Low Gain doesn't help either. I never need to use the high-gain. Also bass boost option was not implemented correctly. It mainly boosts the midbass (perceived as midbass but boosting is done on the whole spectrum by the device. But human hearing is not linear as well, so we need some more subbass boost rather than the midbass boost).
 
As you lower the volume sound stays balanced for each side of the earphones unless you reach a place around the number “1” (the lowest value before off position on the volume pot).  Around volume level 1 sound seems to be slightly louder on the left side. But I am not sure anyone would ever use such a low volume. So not a deal-breaker…
C5DAC has an airy sound which is especially derived from the treble energy (IMO). But this definition is not complete if I mention the general sound signature to be balanced and detailed with a good amount of bass. I like the separation of the instruments "most" with the C5DAC.
 
For sibilance tests I have listened Armik “For Your Eyes” song and used K7XX as a monitoring headphone. Again the cymbals has a crystal clear presence with the bordering line treble energy (which may result in sibilance if overly done). Hopefully C5DAC never reached the level of sibilance treble energy with this song and headphone. C5DAC's AMP was definitely the most airy sounding amp and has slightly more treble energy out of three amps.
 
Rod Stewart “Have I Told You Lately” track sounds with a huge soundstage with C5DAC's AMP. Sound was so airy and sound details were delivered so well that you feel the large stage in front of you. Switching to the Shellbrook amp gave me a smaller soundstage with slightly more midbass presence and slightly smoother treble. I liked both signature for what they deliver. One is airy/huge, the other one is smoother and more intimate. Topping NX1 sound signature falled in between the C5DAC and Shellbrook Mini Head Signature AMP's. Again I feel that the Midbass is slightly less present on the C5DAC.
 
Because of its signature C5DAC matched extremely well with slightly bassier and less bright headphones in my Lab, like PortaPro (and KSC-35, same drivers though…).
 
I also liked the X2 pairing. K7XX was good, DT150 was great so as the T50RP. C5DAC has more than enough power for everything I plug on to it!
 
 
AMP Section Wrap-Up:
 
For Pairing With K7XX
MiniHead Signature>C5DAC>NX1
 
For Pairing With PortaPro (KSC-35), PX100ii
C5DAC> NX1≥MiniHead Signature
 
For Pairing With Havi B3P1
C5DAC>NX1≥MiniHeadSignature
 
Most Refined Sounding Amp
MiniHead Signature≥C5DAC>NX1
 
Most Vivid Sounding AMP
C5DAC>NX1>MiniHead Signature
 
Best Layering (AMP)
C5DAC>Mini Head Signature>NX1
 
Best Details (AMP)
C5DAC≥Mini Head Signature≥NX1
 
 
Break Down and Evaluation of Some Factors:
 
 
Value for Money:
I think that the C5DAC has a very good value for the money at the current price (215 USD). IMO, it is worth. But a discounted price would be welcomed by the community
Think of an unit that has DAC/AMP feature, DAC can be separately used if connection is made through Coax out. AMP can be used separately. Unit can serve as an external battery back-up. So what are you going to ask for more; Cayin to include a detachable iem, a led flashlight, an integrated pocket knife and a lighter to the body of the DAC!? Is it going to be the ultimate survival tool for an Audiophile? Cmon...
 

Love Factor:
This term is new in head-fi (I prefer to use it). "Love factor" is very "personal taste" dependent and one should take care of this factor as a grain of salt (but if you ask me it's the most important factor). This factor summarizes my liking of sound quality, comfort/ergonomics, durability, features, aesthetics, etc. Love factor levels are: Poor, Moderate, High.

So "love factor" for the C5DAC is high for me!

 

Burn-In (brain/device):

I had a chance to test one burned and one out of the box units side by side. The problematic device doesn't hold the charge properly and doesn't stream Spotify accuretly from my TabS. So I have contacted Cayin and they send me another C5DAC. I have to say that the difference between the two units were very very little. The pre-burned unit sounded slightly better giving slightly more details, separation and also the soundstage seemed to be a hair larger. From this comparison I can safely say that the C5DAC may need at least 10-15 h of burn-in to sound at its best.

 

EMI and Heating: 

I didn't notice any electromagnetic interference (EMI) during the review period of 14 days when I used the C5DAC connected with my LG G3. IMO, EMI shielding is excellent for this DAC/AMP!

 

I have measured the temperature with a calibrated IR temperature meter tool. Room temperature were measured from an aluminum object which doesn't produce heating.
 

 
Under a temperature stabilized room condition (fixed at 25 ^oC) and after 1h of constant use (playing FLAC hi-res files) C5DAC can reach 35 ^oC (max). In contrast Astrapi can reach (max) 28 ^oC and GO720 can reach 45 ^oC (max).
 

 
Generally C5DAC stayed at 32 ^oC during my tests (mean value, see the above photo). This may not seem a big issue unless you live in a hotter climate where the rise of the heat can possibly reach above 35 ^oC. Also if you intend to put the C5DAC in your pocket with your phone (and if you’re in a temperate to hot climate) the heat production of the C5DAC may start to annoy you after some time... But if you are in a cooler climate you may love this "slight heating" effect. Generally I didn’t see the heat production as a big issue but -IMO- buyers should be aware of it.
 
So how about a solid state amp heat production using the same BurrBrown buffers in the C5DAC? In my tests it is nearly the same (compared with a Shelbrook Mini Head Signature, Mini Head produced 30 ^oC (mean value)).
 

Battery Consumption and Charging Times:

Since C5DAC has its own battery, I didn't notice any extra power consumption from my phone. The units own battery lasted approx for 18h when used as an AMP and lasted for approx 8h when used as a DAC. I believe these values will increase after 10 charge/discharge cycles. As a general rule (or truth) rechargeable batteries reaches their maximum charge holding capabilities after some use (fully charge/discharge cycles).

 

When charged with an original Samsung wall charger, generally my unit reached full charge around 5 hours (stated time is 4.5h).

 

The unit have 3 tiny orange leds on the bottom portion of the face plate and while charging these leds start to blink in order of the charge status. When fully charged, all the three leds light constantly and this means that you can remove the microUSB jack from the charging plug. I would like to see these battery status leds on the top of the unit for a future model. And 5 leds can serve better and give more precise information. The single orange led on the top of the unit can be completely removed by this way (IMO, no need for it if you put all the battery indicators on the top).

 

Durability:

C5DAC is made -mainly- out of aluminum. But top and bottom parts are plastic so generally it gave me the feeling that the unit is durable enough... Unfortunately 14 days of ownership is not enough to tell that the device is durable. So only the time can tell the truth...

 

So, in general the DAC body looks and feels very robust. Unfortunately the housings aluminum plates (there are 2 main plates, one on back and one on the front) can move very little when squeezed in your hand. Not on a deal-breaking level though… But I would prefer a more solid feeling for the housing.

 

Design: 

I like the aesthetics of the C5DAC so much that I did some extra photo-shooting for it. The aluminum main plates and lightly painted gold color gives an elegant feeling. IMO the top plastic parts aesthetics can be improved with a better/easier volume pot read-out. The cap part plastic feels less elegant especially when viewed under proper light. It is slightly hard to read and see the symbols and writings through this plastic cap (top) part under relatively dim light conditions.

 

On the brand name part, I absolutely love the signature of the Cayin !!! May be a brushed aluminum 3D printed or Laser etched signature can suit the device better ! I am wishing from Cayin that the future units to be thinner and slightly lighter (if possible). Other than that I had no complaints for the general size. And a Laser etched or 3D Cayin name (signature) please.

 

Compatibility:

C5DAC is one of the greatest devices for its compatibility. Whether you attach it to your IOS (you need to use the lightning connector kit), Android, PC or Laptop, it is recognized by the system very fast (nearly no lag) and C5DAC starts to deliver the music to your headphones.  Add the separate usability of the AMP section and DAC section to this, you are coevered for almost any applications on your audio chain. If these are not enough, C5DAC can serve as an external battery back-up for your mobile devices too!

 
USB Support:
I could only get C5DAC working with my computers USB 2.0 port. No support for USB 3.0 port in my experience.
 
Hissing:
IMO, C5DAC is generally safe to use (doesn't produce audible hiss or background noise) with the moderate to less sensitive iem's and hp's. With the high sensitivity iem's you may hear a very low level of hissing. But you really need to be in a very quiet room to hear this (and while you're not playing the music). For example with AI-M6 background hiss can be heard under the explained conditions but with all the other iem and HP's on the test didn't produce an audible hiss to my ears. I can say that the C5DAC is really safe for hiss issues but it didn't have zero -black- background. YMMW.
 
C5DAC never produced pop or click sounds while the volume pot is turned "on" or "off". Also no disturbing sounds while attaching or removing the microUSB cable (tests done while listening through the K7XX). I like the quietness of the C5DAC very much.
 
Remote Control and/or Microphone/Incoming-Outgoing Call Support: 
NO! C5DAC do not support these functions directly. But you can answer a call while the C5DAC is connected (and in use) with your phone (tested only with LG G3, YMMW with other phones). But you need to use your phone mic and speaker if you don’t have a Bluetooth iem. When I connect a Brainwavz BLU-100 bluetooth iem (via the bluetooth) I can answer the calls through the BLU-100. After finishing a call I can put my headphone back on my head and continue to listen to music through it automatically (a very big surprise) !  I don’t need to disconnect the DAC from my mobile phone which is a big plus!!!
 
Playing While Charging:
Yes, you can either use AMP or DAC feature while charging! Thanks to separate microUSB ports and internal design. IMO this is a "must have feature" for any rechargeable battery powered DAC/AMP.
 
Guarantee:
As of this writing I don't have any idea/information about the guarantee.
 
Specs (from the product page):
 

1. Frequency Response：20Hz-70kHz(±1dB)
2. Sensitivity：≤600mV (Gain: H)
3. Total Harmonic Distortion: ≤0.02% (1kHz)
4. Lithium Battery Capacity: 3700mAh / 3.7V
5. Rated Output Power: 300mW + 300mW (32Ω load)
6. SNR: ≥101dB (A-weighted)
7. Charge Limit Voltage: 4.2V
8. Battery Life: about 19 hours (AUX input, 32Ω load)
9.                    about 9 hours (USB input, 32Ω load)
10. Charging Time: about 4.5 hours (off state, the use of DC5V / 2A Charger)
11. Dimensions: 136x63x15mm
12. ALPS potentiometer (volume pot)
13. WIMA HiFi Capacitors
14. DAC Part Uses BurrBrown PCM1795
15. Amp Part Uses BurrBrown BUF634 opamps (2 seprate for each channel)
16. Weight: about 185g

 
 
 
C5DAC Size and Weight Measurements (first value is the measured one, inside the parenthesis are the given values on the product page):
 

Width: 68mm (vs 63mm)
 

Height: 135mm (vs 136mm)
 

Thickness: 15mm (vs 15mm)
 

Compared with a credit card size
 

Weight: 178 g  (vs 185 g)
 
 
Final Thoughts:
 
OK, this has been long review because of the capabilities of the device and the effort I wanted to give.
 
 
Did I like the sound? Yes! Capabilities? Yes! Option for making calls with a Bluetooth headset? Certainly yes!
Opportunity to use the DAC or AMP while charging the unit? Yes! The units capability of charging my phone and/or tablet? Of course yes!
 
C5DAC may need some minor improvements in some areas like: gain switch (needs more steps, should have lower gain),
bass boost switch (should deliver slightly less bassy sound with more emphasis on the subbass region rather than
midbass), thickness (a thinner device is welcome), microUSB cable and port re-design (explained in the review with photos).
But these are not issues which I can call as big. I am already happy with the C5DAC at this 14 days reviewing period.
 
Like any device on the market there are pros and cons...
 
 
So lets remember the question on the first line of this review: As an Audiophile, if you're left alone on a
desolate island and if you are asked to bring only one device (to connect to your phone and HP)
which DAC/AMP would you bring with you?  My answer is simple and easy: C5DAC 
 
 
Some Cayin C5DAC Photos for you, Enjoy!
 

 

 

 

 

 

 

 

 
...you finished? Thanks for reading/watching. I have to thank the Cayin for giving me an opportunity to review their
great DAC/AMP: C5DAC the SPARK!

 
About the review:
In this review I have examined the Don Scorpio sMushroom Bluetooth iem (red-black) for its sound and call quality, comfort, isolation, charge time, battery life, general usage and comfort. Since the sMushroom and sMushroom HD shares many similarities, this review is nearly identical to my sMushroom HD review. So readers will be finding a lot of the parts to be the same.
 
Introduction to The Don Scorpio sMushroom:
Don Scorpio sMushroom is a self powered (85 mAh rechargeable battery), rechargeable bluetooth iem (BT iem) that supports BT 4.0 and aptX codec for -supposedly- high call and audio quality. Built-in microphone which adopts advanced noise reduction technology, to obtain the highest quality call transmission. It is compatible with many android, IOS and Windows Mobile devices that have BT 4.0 support. Don Scorpio is an Asian origin (Guangzhou, China) brand for iem's and headphones which “hit” the head-fi arena with their Don Scorpio “Dolphin” headphones.

 

For this BT iem, there are 3 different color options to choose from: Red, White and Blue.

 

This BT iem is called as "sMushroom Professional version" on the package but it is the inferior model of the "sMushroom HD" model. So I don't prefer to use Pro version name on the review. It doesn't reflect the reality...

 
Awailability:
http://www.penonaudio.com
http://penonaudio.com/Earphones/Bluetooth-Earphone/DONSCORPIO-sMushroom-Professional-Version
 
Why you should use a Bluetooth iem?:
While using your car, while carrying your shopping bags, while taking care of your child, while riding your bike or making sports there are many many examples that you need both of your hands and move freely. At these times (a lot of activity during a typical work day and even after you reach your home) you will want to answer and hear a call handsfree. Without any cable getting on your way. Even if you're slightly away from the phone... You'll need a Bluetooth iem. BT iem not only gives you freedom to talk it allows you to enjoy your music as well.
 
About the reviewer:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good layering and imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. For further, please check my profile.
 
Phones used for the sMushroom tests:
LG G3 (connected with sMushroom)
Samsung Galaxy S3 Mini (Call receiving phone)
iPhone6 (Used for both of the above purposes)
Test Songs:
“The Quiet Ambient” by All India Radio (FLAC)
“On Every Street” by Dire Straits (FLAC)
“Tunglia” by Olafur Arnalds (FLAC)
“Stay Awake” by London Grammar (FLAC)
“The Happiest Days of Our Lives” by Pink Floyd (FLAC)
“Bicare” by Taksim Trio (mp3 320 kbps)
“Hoscakal” by Emre Aydin (mp3 320 kbps)
 ...and many calls with the headset
 
Volume matching before tests:
In a quiet environment I have matched the volume of the each BT iem by the help of a calibrated and scientific grade Sound Pressure Level Meter (UNI-T UT352) each time I connect them to my source via BT. I always use the 1000 Hz seine wave test tones while volume matching. I have compared Don Scorpio sMushroom with Brainwavz BLU-100, Don Scorpio sMushroom HD, Samsung HS3000.

 



 
(sMushroom is sitting inside the self-made adapter for noise isolating and secure SPL Meter connection)
 
Specifications of  sMushroom (from the product page):
 

1. Bluetooth : 4.0
2. Chip: CSR
3. Battery : 85mAh
4. Charge : USB
5. Standby time : 60 hours
6. Support: APT-X
7. Support: mobile phone show the power
8. Speaker: 15 mm dynamic
9. Impedance: 32ohm
10. Sensitivity: 113db
11. Cable: TPE
12. Dimension: 51cm
13. Wireless distance: 10 m

 
Included Accessories:

1. microUSB to USB charge cable
2. 3 pair of silicone eartips

 
Charging:
You need to connect the included short microUSB cable between the sMushroom and your computer USB port (or with any kind of USB charger).
With my unit and charging adapter it took about 2h to fully charge the sMushroom. You need to remove a plastic covering from the Left side of the earpiece. This little cover won’t get lost because it is connected to body with a small connection piece.
 

MicroUSB en of the USB cable is connected to the left earpiece
 
 
While charging, the small led turns to red color and same led turns to white as the charge process completes.
 
This led flashes when you turn ON the sMushroom. But the led won’t continue to flash in intervals –instead- it will always stay ON until you turn the BT iem off. I really don’t like this because there is a constant light that people may notice (people may think that your microphone is open or you’re on a call) and this may consume extra battery.
 

 
In general, I found the implementation of this led better than the led on the Brainwavz BLU-100 bluetooth iem.
 
There is only one button on the remote control (mic unit). Mic is on the back side of these buttons. User may control everything (on/off, pairing mode, volume up/down, answer/end call, reject call, play/pause, skip to next/previous song, turn on/off voice dial) from the single button on the earpiece and on the back of the microphone. All are controlled via the special and easy to learn push commands to either one of these buttons.
 

 
On my phone Bluetooth pairing list the name appears as sMushroom.  

 
 
Pairing:
Pairing is fairly easy for sMushroom. You need to turn the Bluetooth on your phone first then press and hold the button on the left earpiece of the sMushroom for approximately 5 seconds. This way you'll turn on your BT iem and can see the model number on the list. If not shown on the list you need to refresh the list (just push "search for the devices" button on your phone screen).
 
After finishing the pairing you don't need to enter to the pairing process again. They will find each other and pair automatically as you turn the BT for the ON position in each device consequently. 
You'll see that the BT icon gets BOLD on the right and BT iem battery condition indicator on the left (marked with arrows).
I especially find the BT iem battery condition indicator very very helpful!
 

 
On a LG G3 phone you can continue to see the BT iem battery condition idicator even on your circle window
If you double tap the circle (if you're using tge LG G3 with a circle window  flip case, notice the red arrow).
 

 
 
Comfort:
I really prefer the connected earpiece design with the single cord which can hang behind your neck. Some people may prefer to use it as below the chin position. The housings of the iem looks stylish for some. But some people may not like it. For me its just OK. It is rather big but very lightweight. Biggest problem with the housing and general design is: it is really hard to get a secure fit (again, YMMW). Each time I turn my head this iem tends to fall out. None of the included eartips helped me to solve this problem. Also the short cord length makes two problems: while you’re not making any calls you can just leave the iem hang from behind of your neck to your chest. If you use it this way you need to turn down your head to see the iem body. Also short cord causes the iem to fall out of your ears because of the neck movements (YMMW). If you intend to use the iem cable under your chin fit and stay problems are far lesser but you need to put the iem on somewhere else after finishing your call (I don’t prefer this way).
 
Isolation:
Isolation is poor for an iem, but great for a daily Bluetooth iem. If your BT iem isolation is high you need to lower your speaking volume while making calls because your brain may think that you're not speaking loud enough (as a result of blockage of your own voice). Also you may want to hear the surroundings (traffic, cars, signals, etc.).
I like the implementation of the vents which help the outside noise to enter to the iem housing. Thus you may be able to hear the traffic and your own voice. From my point of view; if a BT iem is intended to be used while making calls you need to hear your voice as well as surroundings. Because complete noise isolation makes the usage less secure and you need to raise your voice because you think that you’re not talking loud enough.
 
Battrey Life:
It is stated that the battery life is 60 hours for standby. Generally I do agree for the standby time.If you use the sMushroom for making/receiving calls as well as some music listening (around 1 h of music listening and with 2 h of making calls) it lasts only for approximately 1-2 days. So the active using time is short for this kind of device.
 
Reception Range:
It is stated that the range is 10 meters. This is true if your BT iem is fully charged and if you're on a completely open field. Inside a building or in your house range is shortened under these circumstances (approx 6.5 m). So you need to carry your phone in your pocket if you intend to move to the next room and if you (especially) shut the doors.
 
Microphone Quality:
Microphone quality is average. Capable of sending calls. Sometimes receiver complained about the call quality... Also you need to take care of the microphone. If its away from your mouth or under your hair it is hard to send your voice. Generally microphone delivered quieter sound when paired with iPhone 6 (compared to LG G3 pairing) which is a real deal breaker.
 

Speaker Quality:

 

Treble:

Veiled sound. Treble is recessed.
 
Mids:
Mids presentation is average. In addition I would like to hear more details.
 

Bass:

Have an above average body. Some mid-bass bloat. Mid bass is more prominent than subbass (like its brother sMushroom HD).

 

Overall Impressions on Sound:
Overall a bassy character with a warm sound. Veiled sound with recessed highs creates a non-fatigue sound. I would prefer better highs presentation, less bloat of the mid bass and bass section, and much better clarity. The sound quality was the worst compared to these: sMushroom HD, Samsung HS-3000, BLU-1000. But it is acceptable to making calls -not for music listening- (YMMW).

 
Comparisons:
Comparisons made with BT iems: Brainwavz BLU-100, Samsung HS3000 and DonScorpio sMushroom HD (please check the below link):
http://www.head-fi.org/t/774206/comparison-of-4-different-bluetooth-iems-brainwavz-blu-100-don-scorpio-smushroom-hd-don-scorpio-smushroom-samsung-hs3000
 


 
Conclusion:

Don Scorpio sMushroom iem delivers acceptable sound quality with just "OK" quality microphone (not too good, not too bad) and a good list of features. My 4 main complaints were about the reception distance, battery life, ergonomics and speaker/mic quality. So the iem needed some improvements which you may be able to find on the sMushroom HD version, but at the double price. For the price I still can say that the total package and sound (especially for making calls) is acceptable and may be purchased.

 
About the review:
In this review I have examined the Don Scorpio sMushroom HD Bluetooth iem (white) for its sound and call quality, comfort, isolation, charge time, battery life, general usage and comfort.
 
Introduction to The Don Scorpio sMushroom HD:
Don Scorpio sMushroom HD is a self powered (85 mAh battery), rechargeable bluetooth iem (BT iem) that supports BT 4.1 and aptX codec for -supposedly- HD call and audio quality. Built-in microphone which adopts advanced noise reduction technology, to obtain the highest quality call transmission. It is compatible with many android, IOS and Windows Mobile devices that have BT 4.1 support. Don Scorpio is an Asian origin (Guangzhou, China) brand for iem's and headphones which “hit” the head-fi arena with their Don Scorpio “Dolphin” headphones.

 

For this BT iem, there are 3 different color options to choose from: Red, White and Blue.

 

 
Awailability:
 
http://www.penonaudio.com
http://penonaudio.com/DONSCORPIO-sMushroom-HD
 
Why you should use a Bluetooth iem?:
While using your car, while carrying your shopping bags, while taking care of your child, while riding your bike or making sports there are many many examples that you need both of your hands and move freely. At these times (a lot of activity during a typical work day and even after you reach your home) you will want to answer and hear a call handsfree. Without any cable getting on your way. Even if you're slightly away from the phone... You'll need a Bluetooth iem. BT iem not only gives you freedom to talk it allows you to enjoy your music as well.
 
About the reviewer:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good layering and imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. For further, please check my profile.
 
Phones used for the sMushroom HD tests:
LG G3 (connected with sMushroom HD)
Samsung Galaxy S3 Mini (Call receiving phone)
iPhone6 (Used for both of the above purposes)
Test Songs:
“The Quiet Ambient” by All India Radio (FLAC)
“On Every Street” by Dire Straits (FLAC)
“Tunglia” by Olafur Arnalds (FLAC)
“Stay Awake” by London Grammar (FLAC)
“The Happiest Days of Our Lives” by Pink Floyd (FLAC)
“Bicare” by Taksim Trio (mp3 320 kbps)
“Hoscakal” by Emre Aydin (mp3 320 kbps)
 ...and many calls with the headset
 
Volume matching before tests:
In a quiet environment I have matched the volume of the each BT iem by the help of a calibrated and scientific grade Sound Pressure Level Meter (UNI-T UT352) each time I connect them to my source via BT. I always use the 1000 Hz seine wave test tones while volume matching. I have compared Don Scorpio sMushroom HD with Brainwavz BLU-100, Don Scorpio sMushroom (Pro version), Samsung HS-3000.

 



(sMushroom HD is sitting inside the self-made adapter for noise isolating and secure SPL Meter connection)
 
Specifications of  sMushroom HD (from the product page):
 

1. Bluetooth : 4.1
2. Chip: CSR
3. Battery : 85mAh
4. Charge : USB
5. Standby time : 60 hours
6. Support: APT-X
7. Support: mobile phone show the power
8. Speaker: 15 mm dynamic
9. Impedance: 32ohm
10. Sensitivity: 113db
11. Cable: TPE
12. Dimension: 51cm
13. Wireless distance: 9 m

 
Included Accessories:

1. microUSB to USB charge cable
2. 3 pair of silicone eartips
3. Carry Case

 
Charging:
You need to connect the included short microUSB cable between the sMushroom HD and your computer USB port (or with any kind of USB charger).
With my unit and charging adapter it took about 2h to fully charge the sMushroom HD. You need to remove a plastic covering from the Left side of the earpiece. This little cover won’t get lost because it is connected to body with a small connection piece.
 

MicroUSB en of the USB cable is connected to the left earpiece
 
 
While charging, the small led turns to red color and same led turns to white as the charge process completes.
 
This led flashes when you turn ON the sMushroom HD. But the led won’t continue to flash in intervals –instead- it will always stay ON until you turn the BT iem off. I really don’t like this because there is a constant light that people may notice (people may think that your microphone is open or you’re on a call) and this may consume extra battery.
 

 
On my unit, tiny led is slightly recessed in to the Shell and it is slightly hard to see from some angles (although it is hard to understand the situation from the photo). But in general, I found the implementation of this led better than the led on the Brainwavz BLU-100 bluetooth iem.
 
There are 3 buttons on the remote control (mic unit). Mic is on the back side of these buttons. There are controls for on/off, pairing mode, volume up/down, answer/end call, reject call, redial the last call, play/pause, skip to next/previous song, turn on/off voice dial. All are controlled via the special and easy to learn push commands to either one of these buttons.
 

 
 
The small opening on the below photo is showing you the place of the mic.
 

Mic opening on the back of the remote control buttons
 
 
On my phone Bluetooth pairing list the name appears as sMushroom HD.
 

 
Pairing:
Pairing is fairly easy for sMushroom HD. You need to turn the Bluetooth on your phone first then press and hold the button on the left earpiece of the sMushroom HD for approximately 5 seconds. This way you'll turn on your BT iem and can see the model number on the list. If not shown on the list you need to refresh the list (just push "search for the devices" button on your phone screen).
 
After finishing the pairing you don't need to enter to the pairing process again. They will find each other and pair automatically as you turn the BT for the ON position in each device consequently. 
You'll see that the BT icon gets BOLD on the right and BT iem battery condition indicator on the left (marked with arrows).
I especially find the BT iem battery condition indicator very very helpful!
 

 
On a LG G3 phone you can continue to see the BT iem battery condition idicator even on your circle window
If you double tap the circle (if you're using tge LG G3 with a circle window  flip case, notice the red arrow).
 

 
 
Comfort:
I really prefer the connected earpiece design with the single cord which can hang behind your neck. Some people may prefer to use it as below the chin position. The housings of the iem looks stylish for some. But some people may not like it. For me its just OK. It is rather big but very lightweight. Biggest problem with the housing and general design is: it is really hard to get a secure fit (again, YMMW). Each time I turn my head this iem tends to fall out. None of the included eartips helped me to solve this problem. Also the short cord length makes two problems: while you’re not making any calls you can just leave the iem hang from behind of your neck to your chest. If you use it this way you need to turn down your head to see the iem body. Also short cord causes the iem to fall out of your ears because of the neck movements (YMMW). If you intend to use the iem cable under your chin fit and stay problems are far lesser but you need to put the iem on somewhere else after finishing your call (I don’t prefer this way).
 
Isolation:
Isolation is poor for an iem, but great for a daily Bluetooth iem. If your BT iem isolation is high you need to lower your speaking volume while making calls because your brain may think that you're not speaking loud enough (as a result of blockage of your own voice). Also you may want to hear the surroundings (traffic, cars, signals, etc.).
I like the implementation of the vents which help the outside noise to enter to the iem housing. Thus you may be able to hear the traffic and your own voice. From my point of view; if a BT iem is intended to be used while making calls you need to hear your voice as well as surroundings. Because complete noise isolation makes the usage less secure and you need to raise your voice because you think that you’re not talking loud enough.
 
Battrey Life:
It is stated that the battery life is 60 hours for standby. Generally I do agree for the standby time.If you use the sMushroom HD for making/receiving calls as well as some music listening (around 1 h of music listening and with 1-2 h of making calls) it lasts only for approximately 1/2 to 1 day. So the active using time is very short for this kind of device. At first use the BT iem battery seemed full on the phone screen. But after second, third, fourth and so on charges it always appeared half. Also standby and active use time shortened. I believe this is due to a bad quality (or dud) battery inside the sMuchroom HD.
 
Reception Range:
It is stated that the range is 9 meters. This is true if your BT iem is fully charged and if you're on a completely open field. Inside a building or in your house range is shortened under these circumstances (approx 6 m). So you need to carry your phone in your pocket if you intend to move to the next room and if you (especially) shut the doors.
 
 
Microphone Quality:
Microphone quality is above average. Capable of sending clean and clear calls. But you need to take care of the microphone. If its away from your mouth or under your hair it is hard to send your voice.
 

 

Speaker Quality:

 

Treble:

Veiled sound. Treble is slightly recessed.
 
Mids:
Mids presentation is very good and certainly one of the best on its class.  Vocal stage is on the center and very well represented (depends on recording). Midrange is clear for a BT iem though I would like to hear slightly more details.
 

Bass:

Have an above average body. Some mid-bass bloat. Mid bass is more prominent than subbass.

 

Overall Impressions on Sound:
Overall a bassy character with a warm sound. Veiled sound with recessed highs creates a non-fatigue sound. Though I prefer a better highs presentation, less bloat of the mid bass and bass section, and better clarity. The sound quality was better than sMushroom, on-par with the Samsung HS-3000, worse than BLU-1000.

 
Comparisons:
Comparisons made with BT iems: Samsung HS3000, DonScorpio sMushroom HD, DonScorpio sMushroom :
http://www.head-fi.org/t/774206/comparison-of-4-different-bluetooth-iems-brainwavz-blu-100-don-scorpio-smushroom-hd-don-scorpio-smushroom-samsung-hs3000
 


 
Conclusion:

Don Scorpio sMushroom HD iem delivers good sound quality with a relatively good quality microphone and a good list of features. My 3 main complaints were about the reception distance, battery life and ergonomics. Also sound needs some improvement, though it's not behind the competition.

About the review:
In this review I have examined the Brainwavz BLU-100 Bluetooth iem for its sound and call quality, comfort, isolation, charge time, battery life, general usage and comfort.
 

 
Introduction to The Brainwavz BLU-100 IEM:
Brainwavz BLU-100 is a self powered (60mAh battery), rechargeable bluetooth iem (BT iem) that supports BT 4.0 and aptX codec for enhanced audio quality. It is compatible with many android, IOS and other devices that have BT 4.0 support. This is the first BT iem that Brainwavz ever manufactured. Brainwavz is a well known, Asian origin brand for its iem's, headphones and some other audio equipments.

 


 
Why you should use a Bluetooth iem?:
While using your car, while carrying your shopping bags, while taking care of your child, while riding your bike or making sports there are many many examples that you need both of your hands and move freely. At these times (a lot of activity during a typical work day and even after you reach your home) you will want to answer and hear a call handsfree. Without any cable getting on your way. Even if you're slightly away from the phone... You'll need a Bluetooth iem. BT iem not only gives you freedom to talk it allows you to enjoy your music as well.
 
 
About the reviewer:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. For further, please check my profile.
 
 
Phones used for the BLU-100 test:
 
LG G3 (connected with BLU-100)
 
Samsung Galaxy S3 Mini (Call receiving phone)
 
iPhone6 (Used for both of the above purposes)
 
 
Test Songs:

 
“The Quiet Ambient” by All India Radio (FLAC)
 
“On Every Street” by Dire Straits (FLAC)
 
“Tunglia” by Olafur Arnalds (FLAC)
 
“Stay Awake” by London Grammar (FLAC)
 
“The Happiest Days of Our Lives” by Pink Floyd (FLAC)
 
“Bicare” by Taksim Trio (mp3 320 kbps)
 
“Hoscakal” by Emre Aydin (mp3 320 kbps)

 

...and some calls with the headset

 
 
Volume matching before tests:

In a quiet environment I have matched the volume of the each BT iem by the help of a calibrated and scientific grade Sound Pressure Level Meter (UNI-T UT352) each time I connect them to my source via BT. I always use the 1000 Hz seine wave test tones while volume matching.

 


(BLU-100 is sitting inside the self-made adapter for noise isolating and secure SPL Meter connection)


 
 
Specifications of BT-100 (from the product page):

1. Transducers/Drivers: Dynamic drivers, 8mm
2. Rated Impedance: 30 ohm Closed Dynamic
3. Sensitivity: 110dB at 1mW
4. Frequency range: 20 ~ 20000Hz
5. Bluetooth 4.0 (CSRBC8645) with aptX
6. Operation max distance: 30ft (10m)
7. Battery: 60mAh - 4hrs playtime, 100hrs standby, 2hrs for full charge (Micro USB charging)
8. CVC echo and noise cancellation
9. Supports voice prompt for MMI: Power on - Paring - Connecting - Battery low - Power off
10. Supports HFP, HSP and A2DP
11. Supports pairing with two devices at the same time
12. 3 button remote, works with Apple iOS products, Android & Windows phones & PC
13. 1 year warranty

 
 

 
 
Included Accessories:

1. 1 x Comply foam tips
2. 3 x Pairs of ear tips (S/M/L)
3. 1 x Silicone ear clip
4. 1 x Micro USB cable for charging
5. 1 x Hard carrying case
6. 1 x Instruction manual
7. 1 x Warranty card
    

My BT-100 package:

I have received everything on the above except the retail package (just because mine was a demo unit

 
Genuine Comply Foam Tips (1 pair) were inside their sealed package. The case is the standard, high quality Brainwavz case which is also included with their iem's (like S1, S5, etc.)
 
OK, in my opinion, only the included accessories are worth 15 USD. I have to add that I have never seen a better accessory package -included with a BT iem- before...
 
 
Charging:
You need to connect the included short microUSB cable between the BLU-100 and your computer USB port (or with any kind of USB charger). Specs says <2hr for charge...
 
It takes about 2h-2h30min to fully charge (depending on your source) the BLU-100 on my tests. You need to remove a plastic covering on the back of the Right earpiece. This little cover wont get lost because it is connected to body with a small connection piece.
 

 
While charging, the extremely small single led (white) starts to light constantly (check the below photo). This led light went off as the unit fully charges.
 
Main problem with the led light is that is hidden and can only be seen from a special angle (I really couldn't see it at first). This led also flashes when you turn on the BLU-100.
 
But anyone who doesn't like to see a led light "directly" can prefer this design...
 

 
There are 3 buttons on the remote control an mic unit. Mic is on the back side of this buttons. There are controls for on/off, pairing mode, volume up/down, answer/end call, reject call, redial the last call, play/pause, skip to next/previous song, turn on/off voice dial. All are controlled via the special and easy to learn push commands to either one of these buttons. Pretty impressive number of  controls with only 3 buttons. Needs some getting used to...
 

 
On the back of the Left earpiece there is the Brainwavz logo... Some people may find the BLU-100 body on the large side but IMO it is really good. Because this is not only an iem, there is a 60mAh Li-ion battery, a tiny DAC/AMP, a Bluetooth receiver and sender circuit and an iem driver are resting inside. I like the size, weight and form factor of BLU-100.
 

 
The small dot on the below photo is the microphone opening.
 

 
Although the model name is BLU-100 it is indicated as ......  on my LG G3 and my wife's iPhone 6. So don't get surprised when you couldn't see the BLU-100 name on the Bluetooth pairing list.
 
Pairing:
Pairing is fairly easy for BLU-100. You need to turn the Bluetooth on your phone first then press and hold the center button of the BLU-100 for approximately 5 seconds. This way you'll turn on your BT iem and can see the model number on the list. If not shown on the list you need to refresh the list (just push "search for the devices" button on your phone screen). But as you can see with the red arrow the model number is not BLU-100 on the phone but BD-121 !!!  So don't get confused, just select that one (I believe this is a software problem for the BT device itself, may be this problem is solved with new units). After this selection pairing is done! Very easy!
 
After doing this pairing you don't need to pair your device again. They will find each other and pair automatically as you turn the BT for the ON position in each device consequently. 
 

 
You'll see that the BT icon gets BOLD on the right and BT iem battery condition indicator on the left (marked with arrows).
 
I especially find the BT iem battery condition indicator very very helpful!
 

 
On a LG G3 phone you can continue to see the BT iem battery condition idicator even on your circle window
if you double tap the circle (if you're using tge LG G3 with a circle window  flip case, notice the red arrow).
 

 
Comfort:
Let me start with the design. I really prefer the connected earpiece design with the single cord which can hang behind your neck. I have used all the BT designs (single or double earpieced). My conclusion for daily practical use is the design of the BLU-100's. I wish the cable were texture covered because it sometimes tries to stick on your skin (my back of the neck). For the fitting and general comfort I have to say BLU-100 is the best BT iem I have ever tried! No complaints there.
 
 
Isolation:
Isolation is average for an iem but high for a daily Bluetooth iem. If your BT iem isolation is high you need to lower your speaking volume while making calls because your brain may think that you're not speaking loud enough (as a result of blockage of your own voice). Also you may want to hear the surroundings (traffic, cars, signals, etc.). So therefore the isolation on this BT iem can be lowered in the future models. If the idea of the BLU-100 is for solely listening to the music or using it in secure places, then the isolation is OK.
 
 
Battrey Life:
It is stated that the battery life is 4 hours for continuous audio playback and 100 hours of standby. Generally I do agree with these numbers but if you intend to use theBLU-100 for making/receiving calls as well as some music listening (around 1 h of music listening and with 1-2 h of making calls) it lasts only for approximately 2 days. So the standby time is very very good for this kind of device but it would be better if the operating time were around 10 h.
 
 
Reception Range:
It is stated that the range is 30 ft (10 m). This is true if your BT iem is fully charged and if you're on a completely open field. Inside a building or in your house don't expect that the BLU-100 stays connected with your phone when you enter another room. Range is shortened under these circumstances (around 5-6 m). So you need to carry your phone in your pocket if you intend to move to the next room and if you (especially) shut the doors.
 
 
Microphone Quality:
Microphone quality is above average and certainly one of the best when compared to the other BT iems on my tests. Capable of sending clean and clear calls.
 
 
Treble:

Well defined and fairly detailed for a BT iem. The best treble response I have ever heard in a BT as well… Is it on an audiophile type of an iem treble? No. But extends well up to 15 kHz to my ears. Never gets sibilant or harsh for me. Overall I like the rtreble response.
 
 
Mids:

Mids presentation is slightly cool compared to the other BT iem's I have tested. Vocal stage is on the center and very well represented (depends on recording). Midrange is clear for a BT iem though I would like to hear slightly more details.

 
 

Bass:

Well defined bass section for a BT iem. Subbass depends on the insertion of the nozzle in the earcanal. A tight and deep insertion results in more bass and subbass. Subbass rolls off around 30Hz to m years. Midbass has more body and presence compared to the subbass. In general I found the bass section to be in line with high and mids.

 
 
Overall Impressions on Sound:
In contrast to many other reviewers I found the general sound signature to be relatively neutral. For music listening this is the only BT iem that I could get pleasure with. Stage is relatively wide and deep. Soundstage width is larger than its depth though… But anyone don’t expect a real out of head soundstage experience. I can say that the soundstage is average. Imaging is just OK. Background is not completely black. There are some hissing on the background. It is not possible to detect this hissing while playing music. IMO the main purpose for this BT iem should be for making and answering calls. But for urgent purposes it can serve as a wireless iem for a music listener as well.

 
 
Comparisons:
Comparisons made with BT iems: Samsung HS3000, DonScorpio sMushroom HD, DonScorpio sMushroom (please check the below link):
http://www.head-fi.org/t/774206/comparison-of-4-different-bluetooth-iems-brainwavz-blu-100-don-scorpio-smushroom-hd-don-scorpio-smushroom-samsung-hs3000
 
 

 
Conclusion:

Well especially as being the first Bluetooth iem release of the Brainwavz, the BLU-100 iem delivers good sound quality with a good quality microphone and a good list of features with a great form factor. My 2 complaints were about the reception distance and battery life. Wish they were slightly better... Even with its con's, BLU-100 became my daily BT iem for making and receiving calls! This last "sentence" should tell you more than anything that I could put in words! Recommended by Baycode  

 
What is Cozoy Astrapi?:
Cozoy Astrapi is a Digital Audio Convertor (DAC) and an Amplificator (AMP) built in to same device which is shorter than a regular toothpick. According to the specs Cozoy Astrapi supposed to work with; iPhone5, iPhone6/6s, iPad/iPod mini, iPod touch, Android (OTG Function) and PC/Laptop. Astrapi supports: 16 / 44.1 sampling rate, impedance of 16-100 ohm at 1khz loading and has a very low total harmonic distortion (THD+N: 0.003% ,1khz 0dbfs),  signal to noise ratio is also great (105dB at 3.3V power supply).
 
I have learned that Shozy Alien DAP's team is behind the Cozoy Astrapi DAC/AMP!
Alien is a a well regarded DAP for its sound quality which has no screen and minimalistic approach (only focuses on sound quality and external design).
 
EDIT 1: I have recently learned that Cozoy Astrapi supports line-out functionality (with the volume raised up to the 10/10) !!!   I will be testing this future as well!  I have never used the device with 10/10 volume with an amp. Stay tuned!!!
EDIT 2: Lineo-out functionality and its effect on sound quality added inside the review, please read (Edited parts are BOLDED) !!!
 

On the bottom that little fella is the CA! I use brown leatherette Hococase covers to protect my LG G3 and Samsung Galaxy TabS.
iPhone and Mac belongs to my wife

I am the Android and the Windows guy

 
 
A little about me:
My age is 42 (as of this writing). I have 24 years of background in listening to music with quality headphones (I don't count the crappy equipment period) and I am a member of head-fi since 2004. I prefer neutral, natural (organic) and detailed sound with a huge sound-stage and good imaging. I am not bass or treble head. I can never tolerate sibilance and/or fatiguing highs. For further, please check my profile.
 
 
Equipments Used as a "Source" for This Review:
For this Cozoy Astrapi review (got from Penon Audio internet store) I have used 4 different sources and deeply tested the Cozoy Astrapi (after this I will call it as CA) with:
 
LG G3 (D855),
Samsung Galaxy TabS 8.4",
Apple iPhone 6
and
PC/Laptop.
 
 
CA Package and Included Accessories:
 

Package is minimalistic and rather small like item itself. Reminds the Apple products...
I like the thick cardboard used for this package and its general quality.
 

On the sides it is written as iPod, iPhone and iPad but in reality it supports Android (OTG supported) and PC/Laptop.
I believe Cozoy have to revise this information.
 

Side view
 

Back of the box
 

When you remove the covering part of the box you reach the CA. It is resting in a velvet covered foam.
The included black ribbon lid is a nice touch which eases the removing process of the CA from the resting hole.
 

Below the black velvet foam you can reach the included accessories along with a card.
Those accessories were hidden under a second cardboard separator which I did not include in the shot.
Personally I prefer all my cables to be black color. The included Android and iOS (lightning) connection cables were white. The PC/Laptop connection cable (USB 2.0) is black and rather long. These 3 cables are the only accessories included with the CA.The Android and iOS (lightning) connection cables were approximately 29 cm in length (tip to tip). This length is rather too long for the desktop usage. But if you put the phone in your pocket, you can clip the CA on to your shirt/vest/jacket's pocket or collar. This way you have an easier reach to the headphone plug of the CA.
 

The brushed aluminum body and the clip on the back of the CA body looks/feels excellent in quality! Clip seems very solidly built. It is rather "easy" to insert and remove your headphone/iem jack to/from the CA headphone plug. I believe this easy plugging design is for preventing a possible damage to the microUSB port while accidentally dropping the device and/or tangling your cord to something else. This way your headphone/iem jack can be freed from the plug without stressing the valuable microUSB or iOS connecting (lightning) port. The microUSB and 3.5mm headphone plugs are on the opposite sides. The bottom and top parts seemed to me that they are made with a silver finished plastic (in reality it looks like metal). The micro USB plug inside the body of the CA is made of full metal and looks very durable. Thus, micro USB jack sits in to its place very securely and tightly.
 
EDIT: I have accidentally dropped my cellphone to the floor (on a carpet luckily) yesterday and the 3.5mm headphone jack freed from the plug! This way a possible damage to the more valuable microUSB port of my LG G3 was prevented!
 
The grooves on the sides of CA makes it easy to hold and attach (prevents possible slipping issues).
 
CA doesn't have any buttons, any modes (except the Line-out functionality at max volume), only a microUSB-in and 3.5mm stereo out ! So we are looking at a small, minimalistic approach here! Is the "Less, More"? Read on and find yourself!
 
 

CA is very small. Compare it to the iems on the above and the credit card sized card on the bottom!
 
 
Android Tablet Tests:
I have used my Samsung Galaxy TabS 8.4" (loaded with Samsung 64GB microSD card, running on Android KitKat) for tablet test. I have used and made A-B'ing with the following iem/HP's:
 
Havi B3P1, Dunu Titan 1, Sony MH1C, Meelectronics AI-M6, Koss PortaPro (75ohm resistor and Kramer modded, recabled), Beyerdynamic DT150, Philips Fidelio X2, Philips A5Pro.
 
It will be cumbersome to write down sound differences for each of these so I prefer to write my general impressions of the sound which is reflected through all the equipments I have used. I provided specific information for some of these hp's/iem's in my writing as well...
 

 
Compared to my Galaxy TabS (tablet) headphone out, bass section were slightly tighter and 3D positioning was slightly more precise with te Cozoy Astrapi (CA). Also I found general sound to be more neutral and refined with the CA.
 
Synergy of CA with Beyerdynamic DT150 were great! I like this pairing the most among all of my full sized cans. I love the compatibility and driving power of CA with my B3P1 (a power hungry iem) as well. I have to say that, whatever I plug to the CA, it pairs very nicely with it. The worst pairing was with a orthodynamic headphone: Fostex T50RP. Even the addition of the DV336se amp in to the chain didn't help any for this orthodynamic!
 
EDIT EDIT EDIT: I have tested the line-out functionality of CA. I keep my device and software volumes at MAX and this puts the CA in to the line-out mode. I have tested the line out sound quality with a tube and ss amp. I am now enjoying the sound even more. Even the Fostex T50RP sounds much better to my ears under these conditions with a tube amp. DT150 sound also benefited from the CA line-out -> 336se -> DT150 connection. Compared to non line-out mode sound of the CA, line-out mode brought slightly more detail, body and refined sound to my ears (although differences were not day night big). Especially the power hungry orthodynamics can benefit from this mode.
 
When I connect the CA and then the GO720 -respectively- to my Samsung Galaxy TabS 8.4" tablet, I preferred the sound quality of GO720 by a small margin over the CA   -BUT-  when I listen to relatively low volume levels, I could hear the background noise through the GO720. This problem really put me off the GO720 because I generally listen between 60-75 dB. Also GO720 produces some noise or sound artifacts at the edge of the notes (noticeable even at the high volumes). I have no idea how this problem occurred. But this is only noticeable with the Galaxy TabS connection (not noticeable with LG G3 connection). The biggest advantage of the GO720 with the Galaxy TabS is: GO720 produces higher volumes at the same volume settings compared to CA. But, in the end, I tend to use CA instead of GO720 because of the aforementioned problems.
 

SPL measurements of an iem (MH1C) fed through CA connected to Galaxy TabS. I have used a calibrated, scientific grade SPL Meter.
 

While my MH1C connected directly to the Galaxy TabS I have to raise the volume slider of the UAPP application slightly (in order to achieve the similar sound levels).
Please  check the slider on the right hand side of the application interface, the reverse D symbol.
 

I have obtained approximately 83dB SPL with the GO720 compared to the CA's approx 68dB SPL at the UAPP's same (or very similar) volume setting.
Check the SPL meter screen for further information.
 
When I add the DV336se amp to the chain, DT150 bass earned some body, high freq smoothed out slightly and the sweet tubey sound of the DV336se introduced (only very slightly) to the general signature. Please note that I was using Psvane CV181 TII (6sn7) Classic grade tube on the front and Chatham 6as7g JAN (1958) tube on the back. Also I did apply FitzMod to my 336se (used two high quality 220mF capacitors).
 
BTW, while doing Tablet tests (A-B'ing) with the GO720 I have accidentally blew both drivers of my Sony MH1C !!!     
GO720 is extremely powerful for most iem's and luckily I didn't wear the iems as a precaution when I first connect them with GO720. Otherwise I could have an ear damage as well -which potentially "END" this review and my hearing health- instantly...
 
Conclusion 1: I prefer to use CA attached with my Galaxy TabS. And if you count that GO720 is nearly two times more expensive than CA, choosing the CA over GO720 is the clear way to go. I can advise GO720 especially for the very hard to drive headphones like orthodynamics. GO720 headphone out can easily drive my modded T50RP (with many extra power left)... Also synergy was great between the two... You don't even need to attach an amp to the chain... But if you are not using an orthodynamic headphone -although the CA specs said that it can drive up to 100 OHM's- it can drive a 250 OHM DT150 without the addition of an amp, beautifully!!!
 
 
Mobile Phone Tests:
I have compared headphone out (HO) of the following devices with the CA Headphone out: LG G3 (D855, 32GB + 32GB, Android Lollipop 5.0 - 3.4.0) and iPhone 6.
 
I have to say that it is nearly impossible to tell the differences between the sound of G3 and the CA.
 
While doing hissing tests I have used sensitive iems like Meelec AI-M6 and Dunu Titan1. With both of these iems (especially with AI-M6) I could hear noise (sounds like white noise) on the background. But the noise level was extremely low. While playing songs it was not possible to hear the noise (even on the very quiet passages). But as I stop the music my extremely sensitive ears could pick up the noise again. This was not a problem with the low sensitivity iem's like Havi B3Pro1 and headphones like Beyer DT150.
 
I have to say that after listening to the Brandenburg Concerto N0:3 in G, BWV 1048:1 ;  Coldplay -Atlas- "From The Hunger Games: Catching Fire"  and  Gripin -Gripin- "Sensiz İstanbul'a Düşmanım" songs, my preferences were appeared as on the following: CA+G3 = LG G3 = CA+iP6 > iP6 .
 

LG G3 and iPhone 6. CA is connected with Havi B3 Pro1
 

Quality of the included cables are perfect!
 
It was nearly impossible to tell the difference of the sound quality between a Lollipop updated LG G3 and CA. Although I do feel that CA delivered a tiny bit more refined sound I liked the sound through both of these devices. On the other hand iP6 headphone out (HO) delivered slightly more vivid but slightly artificial sound to me. Also the high freq region were slightly fatiguing for me while using Dunu Titan1 (with iP6 only). In comparison CA connected iP6 delivered same detail level compared to the iP6 HO, but with slightly smoother and slightly more refined (less aggressive, more mature and natural) sound. I don't prefer aggressive and bright highs. May be this also explains why I couldn't listen to prolonged time without getting ear fatigue through the Titan1 (although I like this iem's general sound signature and detail retrieval so much!).
 
In conclusion I can say that -with some of the recent top models from the mobile phones (Android and iOS) manufacturers- adding a CA to the system wouldn't be making a "day and night difference". But if you have lower models Cozoy Astrapi can make a bigger difference. I have to say if you're going to use your cell phone or tablet on the go, CA can certainly deliver powerful sound to your full-sized headphones (like a 250 ohm DT150) and low sensitivity iem's (like Havi B3Pro1). 
 
There is one benefit of adding CA to the system while you're driving a car: CA connection cable provides extra length to the iem/hp and thus you may be able to drive more comfortably without touching or stretching the cable unnecessarily (damn, don't drive while listening with an iem or closed hp!!!).
 
Two biggest drawbacks while using the CA with your Android or iOS devices are: You're unable to charge your phone or tablet (because CA uses the microUSB or in other words "charging port" to transfer the data). The other drawback is, you cant transfer the sound of an incoming or outgoing call through CA. You need to unplug the CA to answer or hear a call.
 
While comparing CA with GO720, I had to use my Anker 10.000 mAh external battery to feed the current (power) needs of the GO720 while CA was as simple as plug and play. Also I have to use UB Audio Player Pro (UAPP) as a player with the GO720. With the clumsy and heavy external battery GO720 doesn't drain my phone battery in a noticeable way but I had to carry those separate things with me which simply made the situation less practical.
 

I have to use an external battery to feed the GO720. GO is a power sucker!!! And it also gets very very warm during use!
Note:  On this shot I have accidentally switched to the standard audio player instead of UAPP!
 
 
On the sound department I have to say that the CA and GO720 was very close through my LG G3. Both sounded great in every possible way except GO720 headphone out delivered slightly more punch and body on the bass section with a slightly warmer/tubey tilt to it. On the other hand, CA sounded more linear to my ears (testing done with a Dunu Titan 1).
 
I know that many people would be interested in the hissing of both of these devices. To my ears, GO720 -after the latest firmware- keeps the hissing level in an extremely quiet level (through LG G3, with the Galaxy TabS its another story). You only sense the hissing (something like a white noise) if you attach a sensitive iem like Titan 1 (16 OHM, Sensitivity 90dB) or AI-M6  (16 OHM, Sensitivity 98dB) and if you don't play the music. With Havi B3 Pro1 you won't even hear this... With CA, hissing or background noise type and noise levels were very similar to GO720 (testing with Titan 1). Again, with a less sensitive iem like B3 Pro1 (32 OHM, 95 dB) I couldn't detect any background noise with CA. While playing the music, background noise was impossible to detect even at the most quiet volume levels with both GO720 and CA (even when used with the most sensitive iem's). So all I can say that CA is a quiet DAC/AMP but I can't say that its background is completely black. If your concern is playing the music than CA is capable of delivering the enjoyment of a noise free listening experience. You can only detect 'extremely low levels of hissing' between the music passages (or while not listening to music) and only with the sensitive iem's (and if you're listening in a very quiet environment). 
 
I have to mention again that CA is compatible with remote control or in-line mic headsets (only delivering the sound to the headset). But you loose the "microphone" and "remote" button functions. You can hear but cannot answer a call...
 
Conclusion 2: Out of a portable Android device, sound quality was a tie between the GO720 and CA. Both delivered good amount of power and sound quality. I can say that GO720 sounded a hair more refined to my ears with LG G3. With TabS, although the sound quality were slightly better than CA, the GO720 delievered some background noise (interestingly only while playing the music, not between the tracks) amd some sound artifacts at the edge of the notes. You want my feedback: If I have to choose one DAC/AMP, I would go with the CA because of its form factor, weight, compatibility and general sound quality. Compared to the headphone out of my LG G3 It was really hard to tell any difference. So a tie here... But I prefer the CA with an iP6 compared to the iP6 headphone out alone.
 
PS: LG G3 never been a go-to device for me before the Android Lollipop update. With the 'stock' Android KitKat software it was sounding cooler than being natural and on the slightly thin side. Although sound-stage and separation were great. After the Lollipop update its sound quality became on a more reference level. Also LG G3 specs says that the SNR ratio is great. I think some flagship phone's sound quality are already great nowadays... This was also mentioned in the CA review of @twister6  and I do agree with him (he did compared the sound quality of the CA to the headphone out of his Samsung Note 4).
 
 
PC/Laptop Tests:
While listening to the Axial Ensemble "Spectrial" track (FLAC), through Beyerdynamic DT150 (a full sized, closed back, 250 OHM, dynamic driver headphone), I sense slightly airier space with CA. GO720 sound have a slightly tubey tilt to it while notes were sensed slightly bolder with slightly less airiness (in comparison). High region is slightly (a hair) smoother with GO720. But somehow GO720 managed to deliver slightly larger soundstage. In general GO720's sound is slightly (a hair) more intimate for me. But don't get me wrong, I enjoyed the music almost equally well with both of these devices. Under these circumstances, the sound quality is almost a tie between GO720 and CA (personal preferences may say the last words). While listening to "Granada" (AIFF) from Russel Watson, I enjoy the sound from the both devices equally well. But the stage was a hair more clear with CA. Almost a tie again...I truly believe that most people can't even tell the difference between GO720 and CA!! On these test conditions both devices delivered zero hissing (and/or other types of noisy sounds). I can say that DT150 have a perfect black background with both. Sound pressure levels were nearly identical with both devices. I do not need to re-adjust the volume slider while A-B'ing them (with DT150 as a headphone, media player and GOM Player as players, GO720 headphone out used only). This was a surprise for me as well, because one can easily think that the CA is inferior to GO720 for its power. Even though the CA specs says that it can be used for 16-100 OHM devices, it did great job when paired with my 250OHM DT150!!!  On the PC and other tests plenty of power left. I only used 2/10th of the volume on mobile devices (Android, iOS) and for PC tests.
 
While listening to the Doyle Bramhall “That’s how strong my love is” I have to say that detail retrieval of CA is on par with GO720. You feel the singers voice on the center on both DAC’s but GO720 gives you slightly better soundstage depth perception. Also separation of the layers (distance between instruments or different sounds) are slightly better with GO720. In addition GO720 sounds slightly more dynamic, slightly more vivid. GO720 have a special (tubey), slightly more organic, sound compared to the CA. But I have to tell, overall differences are not huge. I have to add here that on a “blind test” I believe most of the non-audiophile listeners will have a hard time to distinguish the differences between CA and GO720. Yes, CA it is that good! 
 
I also pushed the limits of the CA with my DT150 (250 OHM) on the PC testing. I could raise the volume up to the 10/10 without a noticeable degradation in sound and the DT150 only started to distort from the 9/10 volume (especially on the low frequencies). This may be due to the capabilities of the HP itself because I am talking about very high volume levels here... I can only listen up to 6/10 comfortably with CA while using DT150 as a headphone and PC as a source. These information may tell you the power and capabilities of this little device.
 
Conclusion 3: This one was a tie. Both of these devices sounded great when connected to a PC. The external battery carrying situation is no more a problem when you use the GO720 with a PC. So competition is rather stiff here... So final decisions are up to the user. If I think only the compatibility along with the sound quality CA is the winner. If the power of the AMP section is more important for you then GO720 may take the lead. If the sound format compatibility is your main concern then GO720 should take the lead as well (GO720 supports up to 384 kHz / 32 bit and can decode DSD64/128.
 
 
Comparing the CA with a DAP:
I have used my iPod Touch 4th Gen 32GB version for the DAP comparison tests. I really like the line-out sound of my iPod Touch 4th Gen. But I don't like the sound from its headphone out thus always prefer to use its line out function. I even prefer the sound of iPod Touch 4th Gen ->Line-out -> 336SE to the GO720-> Line-out (47OHM out) -->336SE by a small margin. I am writing you these information to give an idea how much I "love" the sound of line-out of iPod Touch 4th gen.
 
EDIT: Now the question: Is the CA better than iPod Touch 4th Gen? If I only compare the headphone out of iPod to CA, than the winner is clearly the CA. But the line-out of the iPod is a different story and it is a stiff competition (I have connected both devices to 336SE and listened through a Beyer DT150 headphone for this comparison). I have pushed both device and soprtware (UAPP music player application) volume to max. This action activates the CA line-out mode. With the line-out activated CA, the sound quality was on par with the line-out of iPod Touch 4'th Gen. I can safely say that I prefer the CA sound slightly over the iPod line out because it was slightly more refined to my ears. Also I feel that the stage was slightly bigger. It was a great pleasure to listen my albums inside my LG G3 with an audiophile sound quality through CA! A big smile were in my face all night!
 
Conclusion 4: I have to say that CA connected to a tablet or a mobile phone beats the iPod 4th Gen headphone-out on the sound department. For the line-out comparisons they were close, although I slightly prefer the CA line out sound quality over the iPod touch and it is flexibility. Simply connect anything (Android with USB OTG, iOS with lightning connector and PC/Laptop) on it and you instantly have that Audiophile sound with you!
 
 
Break Down and Evaluation of Some Factors:
 
Value for Money:
Although I love the sound quality, form factor, weight and compatibility I wish the unit was slightly less expensive. Some people may directly pass this one and get a Fiio X1 or Xuelin 770C DAP at the similar price or slightly lesser. But the main goal of this DAC/AMP lies beneath its small form factor and universal usage. I think it has some extremely small nano-tech components which raises the price. You have the ability to turn many many Android, iOS and PC/Laptop's to a great sounding components instantly and without hassle with CA!
 

Love Factor:
This term is new in head-fi (I prefer to use it). "Love factor" is very "personal taste" dependent and one should take care of this factor as a grain of salt (but if you ask me it's one of the most important factor). This factor summarizes my liking of sound quality, comfort, durability,  aesthetics, etc.
 
My love factor is on the well above-average level for the Cozoy Astrapi! I am using it now on a daily basis!
 
 
Burn-In (brain/device):
CA is in the minority of the components that I have came across -up to date- which doesn't benefit from burn-in !  What you hear is what you get from the first day, first hours!
 
 

Heating and EMI: 
If you have one you'll already know, GO720 produces heat liken no other! It gets really warm (especially when decding DSD and/or paired with high OHM headphones). CA also produces slight heat but you need an instrument to measure it because heating is extremely low (your skin may not be appropriate to distinguish the difference of temperature between a non operating CA from a operating CA). So I can prefer to say that CA is a non-heating device. It's heat production is on the instrumental measurement level...
 
Electromagnetic interference can end the possible use of a DAC/AMP unless you use your phone in the "Airplane" mode. So I really do care about this feature. I have to say that I couldn't detect "any" EMI while using my CA with a LG G3 or iPhone 6. It is safe to use with these devices...  You do not need to put your device in the "Airplane" mode (unless you're in a plane ).
 
 
Battery Consumption:
Once connected and operated CA starts to consume your mobile devices battery. But since the power needs are not big like a GO720 you can safely use the CA connected directly to your Android or iOS devices. According to my LG G3 tests I can say that daily 3h of CA connection/use consumed my battery approximately 20-25% more. I am happy with this result.
 
 
Durability:
Design seems very durable. But only time will tell how it goes. I have been using this device only for around 12 days.
 
 
Design: 
Cozoy Astrapi is a handy device. Its one of the biggest success lies in its form. This device is so tiny, light and small that you really wouldn’t care to carry it with you, even permanently attached with your favorite Hp/iem or device itself.
 
 
Campatability:
Virtually works with every Android and iOS device, PC and laptop. But you need to use the correct cable. Also your Android device must support USB OTG.
 
You may not need an application like UAPP because according to my tests any player works with the CA on my Android devices (YMMW). But since I paid some money (I have the full version) I tend to use UAPP music player application. Also I need to mention that the new skin and interface of the UAPP is much better than the old one (recently updated, while writing my review)!!!
 
CA accepts 4 pole 3.5mm connectors and works with them as well. But you loose the remote and microphone functionality. You only get the music to the iem. That's all...
 
EDIT: While connecting CA to the LG G3, TabS or iPhone 6 there were 5-20 seconds of delay in order to get the sound out of the device. If you connect CA to your PC, you may need to choose it as the main (default) audio device from the Control Panel -> Hardware and Sound -> Sound Devices  menu (interface).
 
USB Support:
I could only get CA working with my computers USB 2.0 port. No support for USB 3.0 port in my experience.
 
 

4 pole connector of the Sony MH1C. CA delivers the sound through both Mic/Remote 4 pole (tested with MH1C) and Balanced 4 pole connectors (tested with KZ Acme, I do not have any idea if the connections are balanced as well).
 
 
Hissing:
IMO, CA is generally safe to use (doesn't produce audible hiss or background noise) with the moderate to less sensitive iem's and hp's. But with the high sensitivity iem's and hp's you may get a slight hiss while you're not playing the music. This can be a drawback especially if no music is played. While playing music and with high sensitivity iems I hear no background noise. YMMW.
 
 
Remote Control and/or Microphone/Incoming-Outgoing Call Support: 
NO! CA doesn't support these functions. So you have to remove the CA from your phone to answer it (tested only with LG G3).
 
I think none of the USB DAC's currently support these functions (I might be wrong though).
 
 
Guarantee:
 
As of this writing I don't have no idea/information about the guarantee. But from my past experiences I have a feeling that  Penonaudio won't let me down.
 
 
Weight and Size (including comparisons):
 
 

CA weighted 15 g with the included Android connection (microUSB to microUSB) cable.
I have used a 'calibrated' scientific grade balance to obtain this data.
 

CA without the cable is only 8 grams.
 

In comparison, GO720 with the Android/battery connecting Y cable and
the Anker 10.000 mAh external (portable) battery weighted 279 g!!!
 

GO720 is 33 g
 

The length of the CA measures only 52mm which is shorter than a regular plastic toothpick with dental floss!
 

CA is about 16mm wide and 6mm thick (without the metal clip).
If I measure it with the metal clip it is about 9mm thick.
 

Comparisons with a credit card size and an iem with remote/mic control (Sony MH1C).
This device is definitely very small and lightweight. Think of a in-line remote of your iem, it has nearly the same length.
Because of this "ergonomics", carrying the CA -attached to an iem- never bothered me at all !
 
 
Specifications:

1. Clean Line-Out activated at Max Volume
2. Built-in DSP
3. External USB DAC Functionality (OSX + PC)
4. Compatible with various Android devices through OTG

1. Headphone output :3.5mm
2. Impedance :16-100 ohm at 1khz loading
3. Output vrms:1.5Vrms max
4. THD+N:0.003% ,1khz 0dbfs
5. SNR:105Db AT 3.3V power supply
6. Resolution :16bit/44.1khz sampling (all files above 16/44.1 will be replayed non-natively)
7. System power current :10mA-70mA max
8. Power input:1.8V-3.3V+-10%
9. Output gain level step :3dB/step ;16 steps
10. Headphone power output :10mW max
11. Plug type: digital lightning connector
12. Cable length:20cm
13. Support USB2.0
14. Support connectors: Lightning connector .micro usb -micro usb ,micro usb-usb

 
Decoding and AMP Chip:
Sorry but couldn't find any information!
 
 
End Shot!
 

My components are resting on a traditionally hand woven and naturally dyed Turkish carpet.
I have found a great synergy between the DT150 (Brainwavz pleather 'memoryfoam' earpads) and CA! It can be an end game for some users.
The sound quality and synergy between the two were that good!
 
PS: Please notice the volume slider of the UAPP interface on the right hand side (reverse D symbol). It is nearly on the bottom. This volume level provides 65-75dB of
sound pressure which is a preferable sound level for me at the late nite listening sessions. The power of the CA is that big!
 
I also advise you to check my friend @twister6 's excellent review of Cozoy Astrapi here: http://www.head-fi.org/products/cozoy-astrapi/reviews/12716
 
 
Final Words:
 
CA sounds very linear to my ears with tight bass section and delivers airy sound with great sound-stage. Clarity is excellent! I really like its natural and refined sound. I didn't notice any "added" sibilance with it. I do prefer to use it through my computer and tablet more and more often (compared to LG G3 connection). Do I recommend this device? Of course I do! But I wish the price was a little bit cheaper. This may promote it to a more broad audience. Otherwise, this device's size, weight, sound quality and compatibility with many devices (sources) makes it an unquestionable buy.
 
 
Notes:
1- Most of the terminology used in this review is depending on this excellent write-up by multiple headfiers: http://www.head-fi.org/a/describing-sound-a-glossary
2- Specifications and/or color of the equipments covered by my reviews may change in the future by the manufacturer (without my knowledge) and these changes may not be reflected inside the review in the future (although I prefer to update).
 
 
Subscribe: Baycode's Upcoming and Completed Reviews Newsfeed Page

 
These are seriously great Ear-Pads!  (For some headphones you'll need a tool to fit them easily, just read!)
 
With iems you have huge amount of cheap eartip choices to alter the sound and comfort. But when it comes to headphones, especially full size ones, there are not too many earpads "which can deliver good sound and comfort for a reasonable price".
 
Well, you can get cheap earpads for your Beyer, Fostex, AKG or Philips from e-bay sellers. Some of them really look good quality. I did manage to buy some of these earpads in the past. They were nearly at the same price level of a Brainwavz HM5 earpad or slightly cheaper. But what I loose were the sound quality, build quality and comfort (TBH I can't speak for all of my purchases but 90% of them turn out to be lemon).
 
What Brainwavz excels with the recent HM5 earpads are the comfort and sound IMO. They have memory foams which you can not get at this price point and also they have very soft and friendly to skin velours. Their faux leather earpads are also excellent for the same properties. I generally don't prefer pleathers because they make me sweat.
 
I did some mods on my headphones last week and wanted to share my opinions about these earpads with some photos.
 
 
Edited: Scroll down for more pleather impressions with pics and earpads measurements in milimeters.
 
 
HM5 Earpads on Fidelio X2:
 
First I have tried the black velour BW HM5 earpad with my Fidelio X2. It was slightly hard to fit for me but I did manage to fit it without any flaws.
Comfort: OK, I didn't expect it BUT BW HM5 Velour earpads are more comfortable than the original X2 earpads (IMO). Yes unbelievable but true! I never thought something to be more comfy than the Fidelio X2 earpads but I was wrong. Is the difference huge? No, but anyone who is very very picky about the comfort may prefer the new HM5 memory foam  velour earpds. Also the depth (the space inside the earcups after wearing a headphone) is very similar to the X2.
 
How about sound? The new memory foam HM5 velour earpads sounds nearly the same with X2 earpads which I found extremely good. The only difference my ears could detect is the bass section. It is  slightly softer after the HM5 velours. You can always make a cork-sheet mod on the BW HM5 velour earpads for to get better bass on the X2 (mods explained on the below, there may not be a foam attachment on the cork-sheets for X2 though because the drivers are already angled). But I haven't tried the mod on X2 yet, so keep my words as a "thought" only.
 
In the end I prefer the original X2 earpads sonically (slightly better to my ears). But some mods on HM5 earpads may make them equal or may be better sounding.
 
What I can advise to any X2 user is to get the new HM5 Velours for a spare earpad or for modding. It is definitely worth it and there is no need to wait for Philips to produce the spare X2 earpads!
 

Philips Fidelio X2 fitted with new Brainwavz HM5 memory foam, velour earpads (black).
These earpads sounds and looks great. Comfort is better than original X2 earpads,
but I will give the sound quality with a very small margin to the original earpads (they are very close),
but with a small modification on the HM5 earpads they will become excellent (explained on the above text).
 
 
HM5 Earpads on DT150:
 
I have very difficult times while attaching the HM5 velours on the DT150. I used a bicycle tire lever to fit the earpads on this German tank!
I really like the red color on my DT150. It is very attractive for me now
So how is the comfort and sound?
Comfort is excellent. Nothing to complain about.
Sound is nearly the same (I was not expecting a better sound) as the original earpads but the bass section became softer now and the soundstage is slightly more open.
I did a mod for the earpads to get better bass response and increase the soundstage a little more (explained on the below). My mod made the earpads a better sounding one.
 

Beyerdynamic DT150 fitted with new Brainwavz HM5 memory foam, velour earpads (red).
 
 

I have used these 2 materials for earpad modding for my DT150.
 
 

I cut the cork-sheet and foams by the help of a sharp model-cutter.
 
 

2 different thickness of foams attached to cork-sheet. Attachment were rather
easy because the cork-sheets that I use already have double sided tapes on their surfaces.
I have used the thinner foam on the front, thicker foam on the back part
-under the earpads (see the pitcures).
 
 

Inserting the cork-foams.
 

After the insertion and positioning the Cork-foams.
Cork-Sheet facing down (facing the diaphragm side).
 
 

Normally DT150 looks very "ugly" to me. I like the red color earpads on these!
After achieving a slight angle by the help of the cork-foam mod, I have slightly better soundstage and also bass is tighter now.
But anyone who likes to keep the original bass response of the DT150, choose pleather over the velour earpads because velour softenes the bass slightly.
And for anyone who needs slightly less bass response can go for the velour HM5 earpad.
But in the end I have decided to keep pleather HM5 earpads on the DT150 with the cork/foam mod...
 

I have replaced the velours with pleather HM5's and bass goes deeper now.
 

I have used the same inserts explained before. Definitely improves soundstage and general sound quality.
 
 
HM5 Earpads on T50RP:
 
Many people used HM5 earpads on their Fostex T50RP's. There are dozens of information about the fitting, comfort and sound inside the T50RP threads.
I have tried some mods and fitted the BW HM5 velour earpads on my T50RP as well with very good results. I have to re-mod my T50RP and lessen the inner cotton and fabrics to get better bass response though. Any T50RP modder should investigate HM5 velour or pleather earpads for their T50RP's as a budget and excellent sounding (and comfortable) earpad solution.
Thanks for my friend @peter123 for sending me the necessary modding materials!  
(except the earpads though, I have to thank Audrey from Brainwavz for that )
 

Modding the inner part of the Fostex T50RP. I have fitted this HP with black
Brainwavz HM5 velour earpads which I found extremely comfy.
 

Pleather HM5 earpad (front)
 

Pleather HM5 earpad (back)
 
 

Fostex T50RP sounds much better to my ears with pleather HM5 earpads Better bass, compared to velours.
 
 

Inside look for the pleather HM5 pleathers.
 
 
OK, some other pictures from here now on and some explanations:
 

Close up of X2 fitted with HM5 earpad.
 
 

Close up of X2 fitted with HM5 earpad (other earcup).
 
 

Close up of X2 fitted with HM5 earpad (inside).
 
 

Velour and pleather HM5 earpads.
 
 
 
Below, some measurements. Please line the "0" for to see the correct value (in mm)".
 

 

 

 

 

 

 
 
Using the bicycle tire lever for fitting the earpads:
 
In the beginning of the review I have mentioned that the fitting is tight (difficult). For example fitting is almost impossible for the
large earcup (shell) design headphones like Beyerdynamic DT150. If I didn't use the above mentioned technique I could have very hard times.

Bicycle tire levers (note, plastic type) that I used for mounting the HM5 earpads on various headphones.
This is the safest method I came to conclude after tearing 2 aftermarket earpads (not Brainwavz brands).
 
 

The same technique is used for mounting the earpads as unmounting the tires.
There may not be need for a second lever. I have used only one while keeping
my left hand to fix the position of the earpad above the headphone housing (shell).
If you have someone to help you on this process I believe things can get easier.
Unfortunately I was alone
 
I highly recommend the memory foam velour and pleather HM5 earpads to any headfier who needs a budget and excellent quality spare or erapads for modification!
 
And I have a recommendation for Brainwavz as well, please make these earpads slightly larger (or a new generation of model earpads with a slightly larger diamater) for easy fitting on a various full sized headphones.
 
I don't have a Brainwavz HM5 headphone, so I cannot give any information about the fitting to the headphones that the HM5 earpads were originally intended to use with.
 
 
Acknowledgements: Thanks for Audrey from Brainwavz for sending me these great ear-pads. I have received all the new memory foam HM5 earpad versions from her!

AP001 is a battery powered headphone out splitter and amplificator. The first amp that Brainwavz have ever produced (as far as I know). It has a relatively cheap price around 29 USD.
 
 
There are many amplification solutions on the market now for headphones and iem's. I sometimes tend to choose a smaller amp over a large one while I am on a trip or outside the home. So I need enough volume with good sound quality. But battery life is also very very important. When I started to evaluate the Brainwavz AP001 from this perspective it has some pros and cons.
 
Before getting on the review (pros/cons) I have to mention: Anyone who needs bass boost with a tight budget and who needs an headphone out splitter can consider the AP001 without many questions in mind. It ticks the boxes of the "bolded" parts very nicely.
 
 
Pros:
Small, lightweight, can be charged from any 5V adapter or a computer USB port (via the included micro USB cable). Groove on the body can be used for winding up an iem cable. Relatively cheap price. Auto ON and OFF feature. Double headphone out feature. Adds same volume level to the both headphone outs. Seems like that adding 2 iems to the headphone outs doesn't effect the battery life. Adding the second iem after the first one doesn't lower the volume output. Boosts the bass and adds more body to the sound (If you need more bass from your HP or iem you can consider the AP001). Clarity is nice for the price range but not perfect. Low distortion level.
 
Cons:
No volume control. Bass boost effect is always ON and can't be turned off. Adds some coloration to the sound. Slightly narrows the sound-stage. Not as transparent as the Topping NX1 but better than E5's transparency. According to my tests around 8-9 h of batter life. Back of the unit easily scratches. Collects EMI like crazy. Can't be used with or near an active cell phone (or anything produces EMI). Adds only about 8-9 dB of extra volume to my Havi B3 Pro1 iem (out of a Sansa Fuze).
 
EDIT: Can be used while charging.
 
 
On the below I provide information with photos, for Conclusion go to bottom of the page:
 
Unit itself (back of the box)

 
 
Features and Specs (according to Brainwavz web site and the back of the box):
 

1. OP AMP for powerful and clean volume, with bass enhancer
2. Stereo line in and dual stereo line out
3. No degradation of low or high frequency response
4. Supports 16 ohm - 150 ohm earphone & headphones
5. Built in 120 mAh rechargeable battery, provides 12 hours of continuous usage
6. Automatically defects audio to power on and off.
7. Playback: 12+ Hours on full charge

1. Charging interface: Micro USB Port
2. Input: 1 Line in, works with any 3.5mm audio plug from audio source (line in cable included)
3. Output: 2 audio out, works with any 3.5mm audio plug
4. Frequency Response: 10Hz - 100 kHz
5. Suitable Headphone Impedance: 16 ohms - 150 ohms
6. Build-in Rechargeable Battery: 120 mAh
7. Dimension & Weight: 38 x 38 x 12.7mm - 15.5g
8. 1 Year Warranty

 
 
Side view of the box (note 12 months guarantee)

 
 
Other side of the box

 
 
I like these special box stickers.
They allow you to know if someone opened the box before you

 
 
Front of the box

 
 
Inside of the box

 
 
Very small and lightweight splitter/amp
(note the front has a nylon cover to eliminate scratches during packing)

 
 
After removing the nylon cover surface is very clear
(but there were a narrow glue residue on the bottom of the faceplate, can bee seen on some photos)

 
 
Faceplate looks great but the back of the unit already did have scratches.
No shielding for preventing EMI. This limits its use with cell phones.

 
 
Double headphone out (3.5mm stereo jacks) on one side

 
 
There were no explanations on the box but I think this groove
is for winding cable of your headphone/iem

 
 
Line in (accepts 3.5mm jacks, plugging in a source doesn't
turn the unit to ON position but playing music does, nice feature)

 
 
Very common micro USB port for charging. A welcome feature.
Unit plays while charging. But you have wait for a little to get it start
(I believe the battery inside collects some voltage at that period).

 
 
Back of the unit has a shiny black surface which easily scratches.

 
 
Accessories are a very short and cheap (about 10cm) 3.5mm to 3.5mm
stereo mini jack (no gold plating) and a very nice, shielded 28 AWG micro
USB charging cable (about 15-20cm). I wish the mini cable were a little
better quality. But can't complain at the price point... On the bottom you
can see the line in and on the top there are two headphone outs.

 
 
Connected to my LG G3. Havi B3 Pro1 is plugged in as an iem.

 
 
Unit turns itself to ON position when you hit the play button and
nice blue led start to glow inside which shows the unit is ON position.

 
 
From another angle you can see the led inside better...

 
 
The groove on the body of this splitter/amp can be used for winding an iem cable.
Fat cables are not so good for winding up BTW.

 
 
When you plug the micro USB cable unit starts to charge and
an orange led starts to glow inside.Unit can be used while charging.

 
 
Connected to my Sansa Fuze. You can see that the AP001 is very small.

 
 
Conclusion: 
 
If you need an amplification solution to share your music out of your portable audio player and don't want to hurt your pocket, this one may be the thing what you're looking for. Especially "couples", think of this device as a lovely gift. Because of the two headphone out feature, you can listen to your famous tracks with your partner
 
If you need pure HiFi audio quality and very long battery life without EMI then AP001 is not for you. Because AP001 is not intended for those people in mind (IMO). Price point also speaks for it...
 
From my perspective, it can be a great gift (budget but effective) for "couples/lovers" and also bass heads
 
 
 
Acknowledgements:
Thanks for Audrey from Brainwavz for sending me this AP001 review unit!