The TIN HifI ELF C0 is the latest in their C Series, it is a lower budget offering with minimal accessories and comes in a few colors and a non-detachable or detachable cable variation in 3.5mm or USB-C. The units are made of metal with a semi open back design, they are in the bullet shape category but thicker like 1more or Periodic. I found them comfortable despite the size. The tips were a different story, I found them mushy and just not good for me. The cable was stiff and springy but adequate. the optional ear hooks are not necessary but appreciated. Comfort and isolation are average considering the open nature it was decent enough, comfort will depend on tip choice and ear size. I settled on hybrid tips.

Sound Impressions.

The ELF C0 is a V-shaped earbud.
Bass: The lower end has good focus here, Sub-Bass hits with a nice deep reverberation and control. Sub-Bass is more prominent than the Mid-Bas but still the Mid-Bass still has a nice speed and decent kick to it. Bass in general is well textured and warm.
Midrange: The lower Mids have a nice thickness with a warm, smooth and rich tone but suffer from a significant recession. Upper Mids are brighter. at the point where the upper mids and lower treble meet there is a little heat but it's not too harsh with a proper tip change and a warmer source. Vocals are forward and Male vocals have decent weight and energy, Female vocals are more energetic and sharper.
Treble: The Highs are open and airy with a great amount of energy and sparkle, highs are detailed and extend outward, perhaps too much at times. the upper range is bright but not totally harsh and sharp. they do sound natural.
Soundstage: The soundstage is quite good, it combines a wide field with good depth and height, it is accurate and overall technicalities are above average. Under normal circumstances this is always an attribute to look for, but it can be overwhelming given the upper brightness without correction.

Afterthoughts:
The Tin hifi ELFC0 is a interesting IEM for the cost. Good Bass, typical Mids and energetic treble combined with a wide detailed stage and very good details and nice technicalities for the cost. I think with a tip, cable change and the proper amp like the Hip-Dac or similar they could be someone's daily driver just not mine.










Specifications

• Driver Type: 1 dynamic driver with a 10mm PU+titanium plated composite diaphragm.
• Frequency Response: 20Hz-20kHz.
• Sensitivity: 105±3dB @1kHz 0.179V
• Impedance: 32 Ω±15%.
• Power rating: 3mW.
• Maximum power: 5mW
• Maximum distortion: 3% @1k Hz 0.179V
• Jack Connector: SE 3.5mm gold plated / USB Type-C connector.
• Capsule Connection Type: 2Pin 0.78mm.
• Capsule Weight: 3.8g.
• Cable length: 1.25m.
• Capsule colors: gold or blue and black.

The Fosi SK01 comes in the typical fosi audio box inside one finds a USB-C cable for charging, yes even though this looks like it would be one of those power brick plug in amplifiers, it is in fact internal battery powered and while its small its definitely not a portable. It has an all-aluminum design with both dial and quickset buttons for EQ , and The SK01 buttons that control features such as loudness, tone, and gain. as well. It also has a 2500mA battery with 6 hours of playback time.

Here is a basic assessment of the sound as you can change it so drastically.
As is out of the box the SK01 present with a just north of neutral sound and more toward balanced, it has a nice semitransparent sound with some nice details and separation. It mirrors the source superbly. Using the different buttons one can get to totally neutral or a very rich dynamic sound. It ran my most demanding headphones with good loudness. To be fair I tested it with my SMSL m100 a neutral sounding simple DAC. I really wish Fosi would make something like this as an all-in-one unit no need for a separate DAC, honestly that would be great. There is clarity and power here, I wouldn't recommend very sensitive all BA and hybrid IEM but most single dynamic and planar work well with the SK01. As far as headphones, some of my duller ones become very exciting with just the press of a button. The EQ is well implemented and the BASS, MIDS, AND TREBLE is precise in control.


Afterthought:
The Fosio audio SK01 is one of those rare hidden gems that offers good sound, lots of features and build quality for less than expected. It's built like a tank and is highly customizable sound wise. Truely a cool device.

Specifications​

My thanks to ifi for the review unit to test out. As always, my opinion is my own.

The ifi HIP-DAC V3 comes in the same style box same assortment of cables and basically a similar metal body with new titanium shadow coloring. Inside there are a lot of micro changes and upgrades. It still is built exceptionally well and has that ifi house sound I love so much via those great Burr-Brown, XMOS 16-Core chips and other quality components inside.

SPECIFICATIONS
Input: USB-C
Formats supported: DSD256, PCM 384kHz, MQA Decoder
DAC: Bit-Perfect DSD & DXD DAC by Burr Brown
Headphone Outputs

Balanced: 4.4mm
S-BAL: 3.5mm
Power Output
Balanced: 400mW @ 32Ω; 6.3V @ 600Ω
S-BAL: 280mW @ 32Ω; 3.2V @ 600Ω
Output Impedance
Balanced: ≤1Ω , With iEMatch engaged: ≤4.5Ω
S-BAL: ≤1Ω , With iEMatch engaged: ≤4.5Ω
SNR
Balanced: <109dB(A) @ 0dBFS
S-BAL: <103dB(A) @ 0dBFS
DNR
Balanced: <109dB(A)
S-BAL: <103dB(A)
THD + N
Balanced: <0.006X% (360mW/2.0V @ 600Ω)
S-BAL: <0.01% (100mW/1.27V @ 16Ω)


Frequency Response: 20Hz - 45kHz (-3dB)
Power Consumption: <2W idle, 4W max
Battery: Lithium-polymer 2200mAh approx. 8 hours
Power System: Charging via USB-C, BC V1.2 compliant up to 1000mA charging current
Dimensions: 102 x 70 x 14 mm (4.0" x 2.8" x 0.6")
Net weight: 135 g (0.30 lbs)

FEATURES
MQA (Master Quality Authenticated)
Hi-Res True Native® playback of all music formats from MP3 to DSD256, PCM384 and DXD384.
The Burr-Brown True Native® chipset means file formats remain unchanged or ‘bit-perfect’.
The XMOS 16-Core chip processes the audio data received via the USB digital input.
It is a superior method to the traditional single-ended circuit approach. Balanced circuits reduce noise and crosstalk.
XBass is an analogue headphone spatialiser.
iFi’s exclusive S-Balanced® circuit delivers maximum performance from single-ended and balanced headphones alike.


IN THE BOX
iFi hip-dac3
USB-C Male - USB-C Male Cable
USB-A Male - USB-C Male Cable
Warranty Card
User Manual
Quick Start Guide

Opening up the box for the Hip-Dac3 one finds simple accessories but pretty much all you will need. The cable is a better quality this year and of the same copper one found in the Gryphon. The Hip3 is lightweight and thin, easily taken anywhere. I love the satisfying click when turning on the unit. Buttons and switches are all in easy-to-use locations and features are well implemented.

Sound Impressions:
The Xbass feature noticeably increases the depth of the lower end, it does this tastefully and without muddying up the rest of the frequencies. Features like the power match and the new ie match greatly improve the quality of headphones and IEMs performance. Using the Hip3 there is way a noticeable difference between stock audio in both volume and quality, the Hip-DAC3 has extremely low noise and even my most sensitive all BA IEM had no hiss as with some external units. Clarity and details with a touch of that ifi warmth would be my sound impressions in a nutshell.
It has good dynamics and decent soundstage not overly wide but perhaps very natural sounding. Power-wise it may not be a Diablo2 but it certainly has enough for everyday use and even my planar IEM and headphones sounded very good on this little device.

Afterthoughts:
The ifi Hip-Dac3 is a budget friendly portable DAC/Amp with a bunch of useful features and excellent internals.
The constant evolution of the product line is always done to a tasteful degree. The inclusion of ie Match and dual USB-C as well as internal updates make this the best Hip-Dac yet, but I would have liked a little more power out of the S-balanced and 4.4mm, the sound while mostly unchanged is clearer and louder. If you don't have the Hip2 or really need the ie match feature, then defiantly get this one it's a gem for sure.

The Nank(Naenka) Runner Diver2 Professional Swimming Headphones.

The Runner Diver 2 Bone Conduction headphones come in a fine box with nice graphics and documentation.
Inside the sturdy box is the RD2, a set of swimming plugs, a silicone rubber strap, the instructions and warranty information, and the magnetic charging cable. The construction is a very soft silicone rubber material on the outside, it feels well-built and comfortable.

The device has a lot of useful features. Including Bluetooth 5.3 that is compatible with iOS and Android Bluetooth-ready devices. Pairs with smartphones, tablets, Mac, PC computers and laptops. It also has a180mAh that gives it 10 hours at 60% volume, its magnetic fast charging technology let it be fully charged in 1.5 hours. It features internal memory of 32GB, that is accessed by pressing the power button three times to switch to MP3 mode, or back to Bluetooth mode, it should be noted that only TF mode works while underwater. There is also waterproof performance and a large 16mm dynamic driver.

Sound impressions:

The Runner Diver 2 is bone conducting and as far as these types of headphones work, they sound very well-tuned.

Bass:
The Bass while not super impactful and deep like a regular headphone can be felt and heard simultaneously, Bass is good and enjoyable even under water.
Midrange:
Is particularly good there is plenty of clarity and details to listen to music or your favorite podcast here.
Vocals sound clear and forward with no harshness.
Treble:
Treble has a great extension with cymbals and instruments sounding clear and natural.

Conclusion:
The Nank(Naenka) Runner Diver2 is a improvement of this kind of device. It has a bunch of features, sounds good and works without any problems for me. I find it a good quality product and great for working out or just walks on rainy days.

Today I'm giving my impressions on the YANYIN Canon II.
Canon as in a piece in which the same melody is begun in different parts successively, so that the imitations overlap: Not Cannon as in artillery or Bass-Cannon but this does have some tasty Bass.

The Box is an all-black box there is documentation on it, its graphics simple and good.
Inside there are a set of tips in various sizes, a very nice case and a good quality cable. The Canon 2 has a colorful design and is made with smooth ergonomics, so it is comfortable for all day use with isolation being very good.
Constuction consist of 1 Biological Dynamic Driver and 4 Balanced Armature Drivers
High Quality Graphene Single Crystal Copper Silver-Plated Cable
Medical Resin Shell, Galaxy-looking Faceplate
2 Tuning Switches, for 4 different musical styles. The Canon is available in 3.5mm, 2.5mm, and 4.4mm, the one I received was 3.5mm. The switches work to give subtitle changes to the Bass and overall presentation.
For my review I will be returning them to stock position.
As always, my opinion is my own and I do not get paid take part in affiliate links or am influenced in any way other than by what I hear.


Specs:
Driver
1DD+4BD
DRC
27-40Ω
Input
112dB
Frequency
5Hz-25kHz

Sound Impressions:

First the equipment used, it's all wired not Bluetooth devices are used in the testing. HiRes files from high quallity MP3 to DSD, Flac and Alac are used. Today's equipment was the ifi Hip-Dac3 , Gryphon and UNO, Dongles include the Questyle M15, Hidizs S9 pro plus, XO and the Fosi DS2.

Bass:
The lower end presents with a nice blend of power and control, there is an excellent amount of detail here Bass lovers will appreciate.
The Sub-Bass is more prominent with far reaching depth, I found the rumble wonderful. While not the swiftest Bass it still has a above average speed to it. Mid-Bass however does have more speed and a nice tight impact to it. Bass in general has a nice wide and encompassing field, kind of like sitting in front of a nice stereo rack system with big full range speakers. I want to sit in a comfortable chair and let the bass surround me listening to the Red Hot Chili Peppers. Thats the vibe I get off of these great sounding IEM.


Mids:
The midrange is clear and transparent, due to the control from the bass. the mids in general are very detailed and a nice splash of technicalities here make for an engaging listen. The Mids themselves are not overly thick but maintain a decent body and richness. Vocals have a centered position with a little forwardness. Both male and female sound natural and full.

Treble:
The Highs are delightful, providing you are not a treble head audiophile. To me there is nothing wrong with the extension it has a fair amount of energy and sparkle, and the details here have a natural smoothness that compliments its realistic presentation. Another great feature is the lack of harsh spikes and in your face brightness.

Soundstage:
This is another strong point of the Yanyin Canon 2, staging is vast. The height and depth are above average and while still begin a natural expansion the width is very open. It's not overly wide to the point of holographic or unnatural borders but it's still big enough. The imaging is impressive and very accurate.

Afterthoughts:
The Yanyin Canon II is a very well-balanced. IEM it compliments a wide variety of music.
I personally love this IEM it has the perfect blend of Technicalities, Dynamics, and Details. There is great instrument separation. If you are looking for something that could be used all day and is well balanced this one may be just right.

Today I'm going to talk about my experience with the Tanchjim Kara.
The Kara is a hybrid IEM with one dynamic and four balanced armatures, this is a complex configuration that has been popular as of late. Such IEM as Joyodio VZ10, Simgot EM6L, Truethear Nova, Yanyin Canon and a few others off the top of my head. The Kara comes in at around $140-180 depending on the vendor, so its not the most expensive but more in the middle range when considering a ten-driver hybrid.
I'm not going to bore you with the box, it's a sturdy box and has good information and graphics, nuff said.
Inside that box one finds two sets of tips and they come in three sizes, a very large rounded white case, it is more than adequate to store the IEM and tip with room for a dongle or Bluetooth amplifier of smaller proportions. You will also find a thin but nice-looking quality cable, it is 3.5mm and a standard two pin 0.78mm, similar to many Tanchjim cables in thickness. It is made from LITS with anti-oxidization structure and made from oxygen free copper with silver plating. The Kara is a smaller/ Medium sized IEM so it was comfortable for long use, isolation was average.
Overall construction is entirely Resin with the back being transparent and the front plate opacity giving it an almost ICE looking affect. This unit was sent to me from Apos to test out and give my honest opinion as always, I'm not paid or influenced, just a guy who has listened to thousands of IEM over the years. https://apos.audio/products/tanchjim-kara-hybrid-iem

Specs:
Sensitivity: 115dB/Vrms
Frequency response: 7-40kHz
THD: <0.8%@1kHz
Drive unit: DMT 3 Ultra
Impedance: 27Ω±10%
Pin specification: Gold-plated straight pin
Diaphragm: Peek+PU
Wire specifications: 1.25m, 3.5mm, 0.78 PIN
Conductor: Litz oxygen-free copper wire


Sound Impressions:
Equipment for reviews from now on will be simple, I will no longer use BT for testing as it can dramatically change the signature and honestly steaming FLAC or ALAC files via Bluetooth kinda defeats the purpose, I'll still use them from my private enjoyment and am awaiting more support for lossless Bluetooth. So, equipment used was the ifi Hip-Dac 3 via the Hibiy music app and Foobar2000 and the Hidizs S9 pro plus, the ifi Gryphon and Questyle M15.

BASS:
As always, I'll start at the bottom and work upwards.
The lower end of the Kara is tuned towards neutral but with the Sub-Bass being more balanced in its presentation. Sub-Bass has a nice, rounded impact with average speed and decay, it is very organic sounding with a smooth detailed and decently textured sound. Mid-Bass is tighter and faster but falls behind the sub-bass and is just shy of neutral. Songs like Imagine Dragons: Bones show off the excellent control the Bass has.

Midrange:
The lower Mids have a mild recession, they present with a fine warmth and body, there is average separation and details are good with some smoothing. Upper Mids are brighter with a nice sense of neutrality. Vocals both male and female are forward and a little before center. Female vocals are energetic with a non in your face distance I can appreciate. While the Mids have a nice tone there can be some thinness to them at times, it's not overly so but will depend on source and music. Ultimately Mids are pleasant and enjoyable without harshness.

Treble:
The highs are well controlled and not intrusive. treble sensitive people take note you will love the Kara.
Treble has a nice amount of sparkle and air but only enough as to add to the natural sounding highs. The details are average with a nice smooth presentation and a fast roll-off. Just enough to keep it from being dull.

Soundstage:
The Kara has a natural field of stage, it surrounds one's head but is not holographic or over boosted. The width is above average, and height and depth are a little smaller. There is good separation and imaging is accurate. I found no fault even on busy recording, so it does a good job here. Listening is more towards a theater sized building and perhaps the middle row.

Afterthoughts:
The Tanchjim Kara is unique among similar hybrids, the Canon is more detailed and has more energy, the Nova is super fun and Bass is emphasized but the Kara has its charm as it is not harsh, peaky or shouty in any way. The Kara can easily be a daily driver and something you keep in all day long it's just that well rounded.

The PS100 is a versatile and compact audio decoder converter with HDMI ARC, optical, coaxial, and USB inputs, making it suitable for various audio setups. Whether you want to connect it to your TV, computer, or smartphone, the PS100 promises to deliver enhanced sound quality and ease of use.

The SP100 is a tiny DAC , the build is all plastic and it has the following specs.

Technical Parameter:
Input: Optical/Coaxial/HDMI/USB
Output level: 1.9Vrms
THD+N: 0.005% (-85dB)
Dynamic Range: 96dB
SNR: 98dB
Sampling Rate:
USB PCM: 44.1kHz~48kHz
Opt/Coax PCM: 44.1 kHz~192kHz
Power Consumption: <2W
Standby Power: <0.1W
Size: 105 x22 x80mm (W x H x D)
Weight: 90g/0.20lbs
Accessories:
1* PS100 1* HDMI Cable 1* USB Cable 1* User manual 1* SMSL card

The USB , optical, and coaxial worked flawless. Providing a much clearer and more detailed presentation of the sound.
Decent dynamics and mid and treble representation. The Bluetooth however is limited to the lowly SBC , it smoothed over details and emphasized the highs and lows to mediocre levels. I would recommend using it wired for more discerning Audiophiles. Still wired and HDMI ARC are very useful, for gamers and casual Bluetooth is fine. My favorite connection for these types of devices are optical.

The device is small and it's really useful for a gamer as it doesn't take a lot of space and can be tucked away or even attached to the back of the TV or computer system.

I tested mine with the powerful Burson amplifier. And another SMSL product, I found it paired equal well with all.
Wether I was listening to high end Yamaha YH-L700A Bluetooth or my Hifiman Ananda via wired. It's performance was adequate and dependable.

I think for a beginner or a budget minded Audiophile. You would find this product very nice for the under $30 price. It had a lot of features for such a low cost.

https://shenzhenaudio.com/products/truthear-nova-1dd-4ba-in-ear-headphone

SPECIFICATIONS
Sensitivity: 123dB/Vrms @1kHz
THD: THD≤1% @1kHz (94dB)
Frequency response: 8-40kHz (IEC61094, Free Field)
Effective frequency response: 20-20kHz (IEC603184,-3dB)
Diaphragm of Dynamic driver: PU suspension+LCP dome composite diaphragm

Looking at the package for the Nova you see the well-done Anime graphics used a lot in IEM packaging these days. It is tastefully done and there is good documentation on the box as well. Inside the Box is two sets of dual-flanged ear white and black silicon tips in the box, a pair of foam tips, and a small, medium, and large smoke color silicon. Also included is a unique pouch/ case and a robust cloth blue and black cable with a 3.5mm termination and two pin 0.78 connectors.


The shell of the Nova is smooth and rounded, similar to the Zero but a more ergonomic and thicker size design. The nozzle has a good length and I found it very comfortable with excellent isolation. The 3D printed shell is solid and it feels very well built and looks fantastic.

Sound Impressions.
The Bass on the Nova is amazing, very good depth, well textured, and lots of rumble in the Sub-Bass. Surprisingly the Driver handles itself well, there is only minimal bleed due to the Bass having a well-controlled punch. Bass in general is warm and rich, it also has good speed and details. Mid-Bass presents with good distinguishable impact, natural detail, and excellent speed as well.
The Mids on the Truthear Nova are complex.
The Lower Mids are tonally warm with a smoother detail but are very pleasant and have decent tone weight to them. There is a mild recession as with all V-shaped tuning, but vocals are forward. However, the upper Mids can be more emphasized at times, and tend to be more forward. There is good separation between the instruments with a little more detail and above average technicities.
The Treble is neutral it has a decent extension but is more smoothed in its details and instruments sound the way they are supposed to, It's a realistic portrayal. The treble is refreshing and pleasant.

The Soundstage isn't overly wide but is a little above average. Where the Nova shines is a well-placed and accurate portrayal of the surroundings. It can handle busy recordings without falling apart.

Afterthoughts:
The Nova from Truthear is a very enjoyable Harman tuning with an extra side of Bass, it's a well-tuned and enjoyable IEM with both fun smooth qualities and technical ability. This is proof Truthear is improving, and I think many will love this unit.




Equipment used
ifi Gryphon , Questyle M15, Tempotec V6, Periodic Neon and Hidizs XO, AP80 and S9 pro.

Many thanks to Shenzhen Audio for sending me the Truthear Nova in for review.
My opinions are my own as always.

The Letshuoer Solist comes well documented and premium looking package. Inside one finds all the accessories you will need.
Included inside:
●LETSHUOER Soloist

●Stock cable

●Six pairs of silicone eartips

●Two paid of foam eartips

●2.5mm to 3.5mm adapter

●2.5mm to 4.4mm adapter

●Carrying case

The soloist is small, and the resin shape is rounded so it will be comfortable for all ear types. I found the build to be sturdy and light, the unique dynamic Kevlar dome driver with liquid silicone inside and the beautiful outside make this one special. The isolation was above average and stock tips worked well. I really like the included 2.5mm balanced cable with adapters.

Specifications
Impedance: 32±2Ω
Sensitivity at 1w: 105±1db
Distortion: 0.5%±0.2%
Frequency Response: 20Hz-30KHz
Net Weight: 6.5g
Connector: 0.78 2Pin
Housing Material: Resin
Construction: High Precision 3D Printing

Sound:

Bass:
Sub-Bass is deep with great weight and details, the texture and control are good. The Sub-Bass responds well the rock and EDM music with a nonaggressive deep rumble. Mid-Bass has a nice defined speedy slam and overall, the Bass presents with almost zero distortion even on boosted recordings.

Midrange:
The Mids present Clear and engaging. The Lower mids have a little warmth and some recession but the upper Mids are forward and energetic with a little thinner sound. Still there are good details here. For the most part Midrange has great separation and transparency. Male vocals come across inviting and smooth, while Female vocals are more aggressive but not to shouty and harsh levels at normal volume. I found the Mids well done even if a little uneven at times.

Treble:
The highs have good resolution. There is no peaks or sudden dips just a nice pleasant natural tone with great extension. Sound of symbols crashing are highly organic. This is not a treble head IEM but these are good quality highs with neutrality.

Soundstage:
Is wide but not holographic or 3D but its good, not the widest but it certainly is more natural in size than other Bass oriented IEM. It also has excellent placement and details.

Conclusion:
The LetShuoer Soloist is a great Bass centered IEM with a fun V-shaped signature and some really good technicalities.
It's made well, comes with a lot of accessories and it looks beautiful in my opinion.

The Nank (Naenka) Runner pro2 is an improved version of the runner. It offers Bluetooth 5.3, 32GB of memory, is lighter at 32g and there is no microphone. The battery capacity of the Runner Diver headphones is 230mAh, and the battery life spans 8 hours (60% volume music playback) Its lightweight construction and soft durable materials make it comfortable, and you won't even notice it there. These have a unique feature as they can store music via the internal memory.
Double-click the power button to switch between Bluetooth mode and MP3 mode. 32G memory can store enough songs so you don’t have to choose your favorite ones, enjoying the music even without phones. There are 3 test song included. This version is water, sweat, and dirt resistant IPX8. the manual and magnetic charger are included in the box. The unit connects effortlessly, and the Bluetooth is stable with no dropouts.

Sound:
The Bass resonates in my ears with a pleasant vibration, it's clear no distortion or muddiness. These devices usually don't have much in the lower frequencies, but these do a good job making you feel the impact.
Mids are forward and well detailed. Vocals male and female are presented with a nice balanced tone.
Treble has a great extension; it presents with good balance.
Soundstage of course is wide open and accurate. Music is immersive but the outside world still can be heard and this makes these better for outdoor use.

Conclusion: The Runner pro2, has a nice brighter sounding tone with good deep bass and clear mids. This is a very good sounding Bone Conduction unit, with a fun pleasant sound and nice details.

https://apos.audio/products/moondrop-stellaris-iems
I would like to thank Apos audio for letting me try this interesting IEM. My opinion is my own. No affiliate links, non-influenced , non-biased. Just my honest opinion and experiences.

Technical Specifications:
>Impedance: 36Ω±15%.
>Sensitivity: 117dB.
>Frequency response: 10Hz-50kHz.
>Effective Frequency response: 20Hz-20kHz.
>Connectors: Standard 0.78mm 2-pin connectors.
Features:
>Newly-Developed 14.5mm Planar Magnetic Driver.
>High-precision miniature-grade Magnetic array.
>Sub-Nanometer Diaphragm.
>Exquisite Design with Iridescent Shells.
>Premium Softears Ultra-Clear Eartips.
>High-quality Mis-Tip Foam ear tips.
>Professional tuning following VDSF target response.
>Ergonomic and Comfortable.

Packaging is well done, it's a large enough well decorated box to let you know something inside is good. Inside is the very beautiful MD Stellaris, a nice cable similar to the LAN or at least in look. The case is the KATO case, and it fits them well. The Tips are non-standard for MoonDrop, kind of a longer SednaEarfit Crystal in materials but there is also Foam ones in different sizes. The shell is oblong and has that Starfield paint and design look. So, these take many cues from other well liked MoonDrop IEM. Build is very solid with some heft. Once in you won't notice it much. The Nozzles are big and extend deep into the ear, because of this isolation is superb.



Sound:
Bass:
The Lower end on the MoonDrop Stellaris is more of a quality over quantity kind of Bass. There is a good detail and Mid-Bass still has kick when called on, and Sub-Bass shows good depth at times but nothing too deep, this is insertion and tip dependent. Bass has good speed and details overall.

Midrange:
The Mids are clearly a strong point of the Stellaris. The mids present with good energy, they are both open and well textured. Somewhat just shy of transparent and Neutral with separation, and front and center vocals, both male and female are equal in body, quality and details.

Treble:
The Highs are energetic and bright with good details. For certain music and warm sources, they sound very natural and open. The treble has excellent speed and is revealing to a fault with somewhat good microdetails, and while I found the highs pleasant enough on most recording it can be unforgiving on brighter ones. Treble is spiky at some points and combined with upper treble can be harsh at times. Easily fixed with the included foam tips, or use of hybrid ones, and of course EQ. Honestly, I don't like to do ever.

Soundstage:
Its open and has a wide field with good depth and high too, above average in this. The Stellaris also has a fair amount of separation. Imaging is very accurate, and it could do some gaming but it's not holographic, 3D or any other catchphrase.

Afterthoughts:
The MoonDrop Stellaris is a unique tuned IEM planar IEM, not for everyone. It has many good traits, and it should be noted this needs power! I used the ifi Gryphon for the majority of the review with the Questyle M15 and Periodic Neon at times. Its not small either but for me after the right tips it was all just a pleasant experience.

What's in the Box:
- Foam tips
- 3.5 to 6.3mm Adapter
- Shirt Clip
- 3-Flange tips
- Filter replacements, and the tools necessary to perform the replacement.
- ER4-XR units
- Detachable cables
- Storage hard carrying case

The Eytmotic ER4XR comes in respectable packaging inside is all above accessories. They certainly give you a good amount of what you'll need. I found the ER4XR weird at first, I have similar shaped IEM and some triple flanged tips but these fit deep. It will take time getting used to them. afterwards you won't notice they are even there and going back to other IEM the seal and isolation will not be as impressive. The units are made well, and there are tips for every ear. I like the cable and the fact they went with MMCX. There are filters included but they should be changed as directed so it will be an additional expense.

Technical Specifications:
Impedance: 45 Ohm
Connector: 3.5mm / 6.3 mm
Frequency Response: 20 Hz - 16.000Hz
Rated Power Efficiency: 98 dB / 0.1V
Maximum SPL: 122 dB
Cable length: 150 cm / 3.5mm Jack
Driver Type: BA, Ultra Isolation
Coupling Type: In-Ear, Deep Insertion Fit
Headphone to cable connector type: MMCX
Low Magnetic Emissions: Yes




Sound Impressions:
Well start by saying this version has an extended Bass response with a single full range BA driver.

Bass:
There is surprisingly not very much Sub-Bass here. Mid-Bass defiantly is the more and most prominent with good upper Bass details. The Sub-Bass can be heard with enough details but lacks a deep impact. Mid-Bass is super-fast and can handle boosted songs without falling apart to a distorted mess. The Bass in general is detailed and lends to a warm, smooth lower end.

Midrange:
Mids are clear with a warm and sometimes thick register to male vocals, this is in contradiction to the female artist that sound more in your face but not in a harsh way usually. At adequate volumes and lower ones Mids are balanced and well heard with no recession. Source and recording will be intricate in weather the upper mids are presented. Clarity and details are defiantly a feature of the ER4XR and SR Mids.

Treble:
The Highs of the Eytmotic are relaxed and definitely good for treble sensitive listeners but maybe to an extreme.
The highs lack air and energy in general and give the upper end a softness, don't get me wrong there is clarity here fine details and extension are more subdued. Most songs sounded like the symbols were just a gentle presence.

Soundstage:
The Staging on the ER4XR is is small, not narrow but more like a small room very closed in. Imaging, details, as well as the great positioning and fine separation are great features.

My Afterthoughts:
The Eytmotic ER4xr is unique in its tuning, design and sound. It's a high quality In Ear with excellent details and clarity. I can see why they have a large following.

General Information:​

LETSHUOER S12 PRO utilizes a custom 14.8mm large-diaphragm driver with great details retrieval, punchy bass and clear trebles. 102db high sensitivity means that it can be easily driven to volume, be it a cell phone or dongle DACs, LETSHUOER S12 PRO will sound optimal pairing with most source/amps. LETSHUOER S12 PRO comes with a stock cable that is constructed with silver-plated monocrystalline copper, and four 98-strand cores are then weaved together. It is terminated in standard 0.78mm dual pin connectors, and the other end is a swappable jack with 2.5mm / 3.5mm /4.4mm jacks. This system will work with a great amount of source gears and IEMs. Magnetic planar earphones Hi-Fi planar in ear monitors for audiophiles and music lovers.

What's inside the box?
LETSHUOER S12 PRO IEMs.
Three pairs of black-colored memory foam ear tips.
Three pairs of black-colored narrow-bored ear tips.
Three pairs of transparent, balanced-bored ear tips.
Faux-leather case
Modular cable
A 3.5mm termination plug adapter.
A 4.4mm termination plug adapter.
A 2.5mm termination plug adapter.
Supporting documents such as an instruction manual, QC certification, warranty card, and contact card.
A product catalogue booklet.

Packaging is medium in size and inside is a everything I could need for an IEM. I found the shells to be well made and all metal build, they are on the smaller side so fit should not be a problem. I found the comfort and isolation to be very good.

Sound Impressions:
Bass:
The S12 Pro presents with a with a speedy and detailed attack, it sounds almost dynamic, impact is well defined but not very powerful, both the Sub and Mid-Bass have decent weight, and texture, although Mid is more prominent. The Bass in general has an almost neutral feeling at times to the overall bass performance but there is no mistake Bass has a good punch albeit with a rapid decay.

Mids:
Midrange is very clear and forward centered. Vocals have decent body, but male vocals have more weight to them.
The Mids themselves are very well defined and mildly there is a hint of warmth, with a fine texture and pleasant details. I found them not shouty and no harshness.

Treble:
The highs are crisp and detailed without over extending. They have a nice amount of openness and balance.
No harshness up here and just a perfect example of good tuning. Treble sensitive should be able to tolerate this well.

Soundstage:
Stage is wide open, and you can pinpoint things easily even on busy songs, it has good depth and height as well. The separation of each instrument is clearly noticeable. The technicalities in general are much better than most in this price range.

Afterthoughts:
The Lestshuoer S12 Pro is an instant classic and favorite. An enjoyable and very competent IEM most people should try for sure. It is well made and comfortable with excellent accessories.

SPECIFICATION:

MODEL: HIDIZS MP145
IMPEDANCE: 30Ω
SENSITIVITY: 104dB
FREQUENCY RESPONSE: 20Hz - 40KHz
CABLE LENGTH: 1.2M
PIN TYPE: 2-PIN CONNECTOR (0.78MM)
PLUG TYPE: 3.5mm, 4.4mm
DRIVER UNIT(S): (1) PLANAR MAGNETIC DRIVER


The package is medium in size and made of plastic as most Hidizs boxes are. It is adorned with gold lettering and much documentation. Inside one finds these items.
Package and contents:
The two Hidizs MP145 capsules.
3 pairs of tuning filters.
One storage bag.
3 pairs of SxMxL size tips for vocal tuning.
3 pairs of tips size SxMxL for balanced tuning.
3 pairs of tip sizes SxMxL for bass tuning.
1 user manual.
1 warranty card.

The MP145 shells are solid and well built, they are however on the larger size, so small ears should take note. I found comfort for me above average, and isolation was very good. The accessories were well made, but I really would have liked a case for such a nice-looking IEM. It should be noted that these like a little more power than an average BA or DD IEM. I would recommend a decent dongle-DAC at the minimum.

Personal assessment and opinion: The MP145 is large and made entirely of metal. For me the shape and roundness of the back are comfortable, I love the cable but wish it was modular. Besides the pouch for storage, the unboxing was good, and everything points that this is a premium product.

Equpment used:
ifi Gryphon, ifi UNO, Dethonray SG1, Questyle M15, Fosi audio DS2, Hidizs XO, Burson Funk, Periodic Neon, TempoTec V6, Surfans F35, ifi GoPod, and TRI TK-2

Sound Impressions:
The Hidizs MP145 has a unique big Planar sound.

Bass:
The Bass on the MP145 is very well rounded and balanced sounding. There is good speed with both lower and upper Bass and excellent texture. While the Bass does have a fast decay it still manages to be fun without too much overstepping into the Mids.

Mids:
The Midrange is rich and has good note weight, both male and female sound lively and full bodied but not overly thick, the MP145 does have a little recession to the lower mids but it is overshadowed by the wonderful vocal details and transparency.

Treble:
The Highs present with a good energy, they are open and airy with just the right amount of sparkle. While lower treble and upper mids have a slight heat to them this is not always present and not an issue with normal volume and decent recordings. I found the highs to be well extended with control and details.

Soundstage:
The MP145 Has a magnificently wide stage, it does have good depth and height as well. The overall performance has precise location and layering with me being able to hear each separate instrument clearly. The soundstage doesn't suffer any penalties from busy or boosted lower end songs.

Afterthoughts:
The Hidizs MP145 is one of those IEM like the S12 destined to be on everyone's list. It has the right combination of an accurate and detailed but never boring sound. The design is cool, and it is made extremely well.

Product Information
Model：FEDAI DX2
Drive unit：11mm moving coil unit.
Impedance：16Ω
Sensitivity：98db
Interface type ：3.5mm/Type-C gold-plated plug

The Fedai DX2 comes in a familiar case much like most ultra budget IEM it is small but this one is well decorated.
Inside you get three sizes of generic Starline tips, a cable similar to the old CCA ones and the units that look familiar too. Build is decent and isolation was average. I did find them comfortable and light. It is easy to drive despite low sensitivity.

Sound:
Bass:
The Sub-Bass is powerful, but the Mid-Bass is more in front and has more boom to the mix. Bass is well textured and warm.
Mids:
Midrange is Warm and thick bodied, with some recession and smooth details, vocals sound pleasant and are positioned slightly forward with a good smoothness.
Treble:
The highs have energy and sparkle, but details are smooth and relaxed.

Stage: is above in width and average in technicalities having a decent separation and accurate imaging but is far from a technical monster.

The Fedai DX2 is a super inexpensive IEM with a detachable cable and a fun V-shaped signature. It reminds me much of my old KZ ZST pro but with better control in both lower and upper frequencies.

Large and wide extension with a smooth top end and commanding bass is what to expect from MACH 70s impressive soundstage: a listening experience perfect for all people and music genres.
The MACH 70 features a proprietary seven-driver system with single low, dual mids, and quad highs and a 3-way passive crossover.

TECH SPECS

3-way Passive Crossover
DRIVERS: Seven Balanced-Armature Drivers
FREQ RESPONSE: 5Hz – 22kHz
SENSITIVITY: 110dB @1kHz
IMPEDANCE: 42 Ohms @1kHz

The Westone Mach 70 comes in a well decorated box with ample information, inside is the hard case, in the case is a large assortment of accessories, a carabiner, the Mach70 unit, Estron ULTRABaX stock cable, a large number of tips both silicone and foam, a velveted pouch, tool for cleaning, cable organizer, and warranty card with a sticker. The Mach70 itself is made of a high impact plastic with a gray and black matt finish. light and durable, I found them comfortable. Isolation is very good; this product is for performers, so it has to be. The huge case is a great touch. everything is well made; however, while the Estron ULTRABaX cable is one of the thinnest upgrade cables with 224 strands and a quad-twisted design. It also has an ultra-low impedance rating of 0.6Ω, this is so it won’t color the output and it is well made but it also doesn't offer a balanced connection. The foam in the case can be customized to fit your needs.
The Mach70 is very lightweight even with the included cable. It provides excellent isolation and comfort.

The sound impression:
Bass:
The Bass is tip dependent but with the right fit you'll find it is much different from the Mach 60 and 80.
Sub-Bass is deep and powerful but yet doesn't stand in front of the other frequencies. There is a nice lower rumble with good details and control. The Mid-Bass is more prominent with an impressive slam and good speed. Despite there being only a single BA driver for the lows it is fun and dynamic sounding. The bass in general is well controlled and doesn't fall apart on heavy boosted recordings like some BA configurations.

Mids:
The Mids present with a nice thick lush tone. The Mids do not suffer recession despite the Bass and vocals are forward center, vocals have good body and male vocals really sound impressive.
There is great separation throughout and the Mids here are warm with excellent emotion. The details are a little more smoothed than the more reference oriented M60.

Treble:
The Treble presents open and airy with good energy and smooth details. Its more energetic to match the Bass prowess of this unit. The highs are well balanced in the mix and sparkle but roll off quick and naturally. Treble sensitive will enjoy this, as it is never harsh or fatiguing.

Soundstage:
The stage is naturally open and well placed. It handles the busiest of recordings with ease. There is no penalty from the Bass or heavy boosted music. It has accurate details and is organic in its shape.


Conclusion:
The Westone Mach70 Is well made and more than suitable for a fun sounding monitor but also has that engaging midrange, smooth pleasant Highs, and enjoyably fun Bass too. The M70 is made well and comfortable for all day use.

Technical Specs:
3-way Passive Crossover
DRIVERS: Six Balanced-Armature Drivers
FREQ RESPONSE: 8Hz – 20kHz
SENSITIVITY: 100dB @1kHz
IMPEDANCE: 35 Ohms @1kHz



The Westone Mach 60 comes in a well decorated box with ample information, inside is the hard case, in the case is a great assortment of accessories, a carabiner, the Mach60 unit, SuperBaX stock cable, a large number of tips both silicone and foam, a velveted pouch, tool for cleaning, cable organizer, and warranty card with a sticker. The Mach60 itself is made of a high impact plastic. light and durable, I found them comfortable. Isolation is very good; this product is for performers, so it has to be. The case is a great touch. everything is well made; however, while the LINUM ESTRON SuperBaX cable "with a resistance rating as low as 0.75Ωs" is made of high-quality materials and performs well, it is rather thin and springy, it also doesn't offer a balanced connection. The foam in the case can be customized to your needs.

The sound impression:
Bass:
The low end presents with good energy and depth, while not overpowering it has medium speed, precise decay, and details. There is less of a boost compared to the MACH70 and more of a neutralish tone. Maybe due to one more Bass focused driver in the M60. The bass works well for speed metal and EDM music.

Mids: The Midrange presents itself balanced not over emphasizing instruments or vocals. Both are forward and evenly placed. Mids are lush and have good body but are medium in thickness in most recordings but can sound thinner at times. They do have great details allowing you to hear each instrument separately quite well.

Treble:
Highs are detailed and have good air to them but are overall smooth and natural. The energy is kept in control with a ample amount of separation and decent speed. I found them to be not harsh even under poor recordings. The tuning is more suited to monitoring or critical listening.

Soundstage:
The stage is shaped with a decent width and less depth it has a smaller room, perhaps a club or garage band like openness. It does have a well-done imaging and accurate overall presentation.

Conclusion:
The Westone Mach60 is part of the Reference line and is more geared towards professional use or the decerning critical listener. It has a nice lightweight feel and is a natural sounding IEM with a good neutral and detailed signature.

https://www.hidizs.net/products/hidizs-ms1-galaxy-dynamic-driver-in-ear-monitors

Features:
- High-Performance Dual Magnetic Circuit Dynamic Driver
- 10.2mm PU+PEEK Composite Diaphragm
-32 ohms impedance
-108 dB of sensitivity
-20-40kHz
- Optional Inline Control & Microphone
- High-Density German Makrolon Resin Shell
- Silver-Plated Oxygen-Free Copper Wire
- 0.78mm 2-Pin Plug
- Ergonomics Liquid Silicone Ear Tips
- Ergonomics Design with Comfortable Extended Wear
- Perfectly Aligned With The H-2019 Target Frequency Response Curve
- 3.5mm Gold-Plated Plug & Durable Metal Shell & Splitter
- Hi-Res Certification



The MS1 Galaxy is a more budget friendly offering from the company. It comes in a responsible package with Small to Large tips, a cable that is decent quality and the MS1.
The MS1 one is built like a typical IEM in its price range, very light weight and plastic build. It is comfortable and provides adequate isolation.

Sound:
The MS1 Galaxy presents with a warm V-shaped signature.
The Bass is highlighted and forward. The Sub-Bass is king here giving a commanding boom to the mix. Mid-Bass is behind with a nice slam but is overshadowed by the SUB. Mids are as expected. Warm and thick bodied, with some recession and smooth details, vocals sound pleasant and are positioned slightly back. The Treble has enough energy to be noticed stringed instruments sound natural. Stage is average having a decent separation and accurate imaging but is far from a technical monster.

Conclusion: The Hidizs MS1 is an enjoyable budget IEM, it is targeted towards POP, Hip-Hop and Electronic music. The Bass is too overwhelming for Metal but Classic Rock sounds fine. It's a fun and warm IEM nothing too serious for gaming or critical listening.

Inside the Box
1 x DDHIFI E2023 Janus3
User Manual

Technical Details
Model
E2023 (Janus3)
Driver
10mm ultra-low distortion dynamic unit with lithium magnesium alloy dome composite
Frequency Response Range
5Hz-58kHz
Effective Frequency Response Range
20Hz-20kHz
Sensitivity
122dB/Vrms (@1kHz)
Impedance
14 ohms ± 15% (@1kHz)
Interchangeable Cable Design
MMCX connector, with 3.5mm + 4.4mm interchangeable plugs
Cable Material
Single Crystal Copper Core Shielded Cable
Cable Length
1.2 meters
Weight
Approx 5.5g (excluding cable)
Color
Green + Silver

Sound:
Bass: The new composite driver Delivers a faster performance, and the Mid-Bass is Punchy and neutral focusing more on precision than low end rumble, still it has a great detailed Bass that is non fatiguing and well controlled.

Mids: are rich with details somewhat neutral and bright on top but there is that slight warmth down in the lower mids. They also present some really clear vocals with decent body and vocals shine without being shouty or harsh. Male and Female vocals sound good and instruments have a good amount of separation and clarity throughout.

Treble: The highs here have some sparkle and decent details. The performance is much improved here but they are still a little laid back, not that it is a bad thing as they never got to a harsh point but some details are lost to me due to their laid back nature. Still they are easy on the ears of treble sensitive people and present a nice balanced non peaky Treble.

Soundstage:
Is above average with very good imaging and nice separation overall, it feels natural and open. It could be good for mobile gaming.

Conclusion: The Janus3 is the continued evolution of the product line in a good direction.

Performance Specifications (measured)
Frequency Response 13 Hz to 20 kHz +0 dB / – 3 dB
THD < 0.05%, 20 Hz to 20 kHz @ 1 mW
SNR 98 dB (noise floor less than 105 nVrms)
Bluetooth Compatibility iOS, Android, MacOS, Windows, iPadOS, Linux
CODECs: SBC, AAC, AptX, Low Latency
Bluetooth Version 5.2 (Classic, BLE for BSP reporting)
Source Compatibility Any Bluetooth audio source
Continuous Power Output (RMS) 140 mW RMS per channel @ 32 Ohms (280 mW total)
Output Voltage 2.2Vrms @ 0 dBFS
Output Current 100 mA continuous
Battery Life 14 Hours, typical
Battery Size 300 mAh
Charge Time 1 Hour

Length 45mm
Width 23mm
Height 13mm
Weight 12.5 grams
Audio Jack 3.5mm TRRS
Charging Jack USB-C
LED Indicator Blue/Green
Body Material Blended Thermo Copolymer

The Neon comes with some very good specification and a Qualcomm QCC3034 inside, there is also a professional grade 6mm diameter condenser microphone. To use for calls or video. Neon has four dedicated buttons: volume up, volume down, the classic “triple button”, and a source button. Each button has a unique shape for ease of identification. A single LED intuitively shows current status of Neon. Neon also has our legendary AO² Auto-On/Auto-Off power control.

Sound:
The Neon has a nice balanced signature with very good clarity and dynamics. I found it to be a little north of neutral with just a hint of warmth.
Bass, Mids, and Treble present with good details and volume is more robust.

I had no connection issues and it performed better than expected considering the size and cost I think it's a great addition to my travel equipment.