Introduction
Do you guys also experience annoying noises in your audio when using the audio input on your phone (for those who still have phones with a headphone jack) or on your PC? Well, that's exactly what was happening to me two years ago, particularly with in-ear headphones that tend to have low impedance and high sensitivity, which makes them extremely sensitive to any signal transmitted by the device they are connected to.
This little guy saved my ears: this is a review about the TempoTec Sonata HD Pro (yes, I am a little bit late to the party haha), a dongle dac/amp that goes for $39 (but can be found in AliExpress for $30)
Even my cat loves it!
Unboxing, build and accessories
This dac/amp dongle comes in a cute metal box, which contains the device itself, a micro USB to USB-C adapter cable, a USB-C to USB-A adapter, and a sticker. The dongle has an awesome built for $35 USD, it has a good black metal construction with two buttons that allow for volume control, and it doesn't look cheap at all. Furthermore, from my personal experience, I can attest that it is very durable. I have taken it on trips several times and it has even fallen to the ground during a rainy day, yet it still works just like the day I bought it.
Specifications
The TempoTec Sonata HD Pro is a dongle that performs a double function: it serves as a DAC (Digital to Analog Converter) and also as an amplifier, providing a power of 2Vrms (110mW at 32Ohm on high gain mode), making it an ideal companion to use with a wide variety of headphones, from in-ears to over-ears that do not have very low sensitivity (+95 dB (1kHz/1Vrms)). It also has DSD 256 decoding and offers a resolution of up to 32bits/384 kHz.
Performance (music and gaming)
This little guy can give you more volume than you can ask for in almost any portable situation that I can imagine. On my phone, I can only listen at 25% of the volume level provided by the phone at maximum. How is this possible? Let me explain.
As mentioned, the dongle has buttons to control the "steps" that can be taken in volume. However, what I did not mention is that those buttons only control the volume that belongs to the dongle, leaving apart the volume of the device it is connected to. Ideally, the dongle volume should be at max and the volume of the device connected to should be the one to be regulated. On my phone, I can only turn up the volume four steps at most before it gets too loud for me (which represents 25% of the 15 volume steps of this device), while in Windows, I can only raise the overall volume up to 10-12, which is insane!
As for the headphones I used with the dongle, they include Sennheiser HD 558, Hifiman HE400SE, KZ DQ6, Moondrop Aria, and HZ Sound Heart Mirror. Of these, only the HE400SE seemed to need more powerful amplification (even with the high gain trick applied) given their magnetic-planar driver technology, but for the levels at which I listen to music, they worked properly.
The best aspect of this little guy is the practically non-existent floor noise it has. This was a blessing for me because when I started taking this hobby more seriously, I couldn't use any type of headphones with my phone due to the high and annoying floor noise it had. That noise was reduced to something inaudible thanks to the Sonata, and the best thing is that it is also compatible with Windows, so I could use it on multiple devices.
One pleasant surprise with this dongle was how well it worked on Windows. For that reason, I started using it for gaming and really felt a difference in competitive games, shooter games in particular. With such a low noise floor, enemy footsteps or combat situations in Battle Royale type games became much more noticeable (some may consider this a competitive advantage).
In technical terms, the sound profile tends towards analytical, without colouring the sound at all. It presents a wide soundstage (but not as wide as a desktop dac/amp) and good amount of detail in the treble region for such a small device. As a dongle with a colder profile, the voices and instruments don’t have that warmth that many people prefer but is suited for those who like to analyse the music and all of its sounds in detail.
One issue I encountered was that without updating the firmware to the latest version (which can be found on this page: http://www.tempotec.com.cn/chs/4-Company/driver.htm , thanks to user ALC220 who made this link available in the comments on Audio Science Review), the dongle suffered from many cutouts when connected to my phone. After updating the firmware, the presence of cutouts/popping noises decreased significantly but is still audible when fast forwarding or rewinding a video or music track.
Finally, if any other defect has to be mentioned, it could be that the device has an "old" input (micro USB) and that it can heat up when in use due to using the phone battery or PC power to work, but as far as I'm concerned, it doesn't get to the point of bothering me at all.
High gain trick
This "trick" is already well known in the audio enthusiast community and consists of the following: this dongle has two modes, one that recognises low impedance headphones and another that recognises high impedance headphones. The latter offers more power when amplifying headphones, so wouldn't it be convenient to be able to always use it? In order to achieve that, we just have to connect a 3.5mm cable without the headphones connected to the other end, which will make the dongle go into "high gain" mode, then connect our headphones to that same cable and voila!
Conclusion
In summary, this little device gets my recommendation. It allows for a high level of portability with tons of power and a noise-free DAC that simplifies the life of those with audio ports problems like mine.
Attachments
K othic
If you wish to read this review in spanish you can go to my wordpress here
Link to my review and measurement index thread where one can also find a full review overview, more information about myself as well as my general-ish audio and review manifesto: https://www.head-fi.org/threads/956208/
TempoTec Sonata HD Pro
Source:
Purchased at a discount for the purpose of a product review.
Miscellaneous:
Unboxing experience nicer than expected – decent packaging with accessories such as a micro USB to USB-C cable, USB A to USB-C adapter (made of metal just like the cable’s plugs) and a Hi-Res sticker.
A cheap feeling carrying case that is made of metal is included as well – I would have preferred a zipped pouch or hard case, but it’s still better than nothing at all, and nicely padded on the inside.
Nice build quality and finish.
I like the design.
Nice translucent orange volume control buttons.
I don’t like the big DSD logo etching on the back of the device.
Reasonable size.
What I really like is that the female micro USB socket feels solid and that one can use any suitable cable with the DAC.
Short connection cable is supple and looks nice.
Unfortunately there is no LED/operation indicator.
What’s definitely nice is that it automatically detects whether a 3.5 mm plug is inserted or not and accordingly enables/disables the output (doesn’t show up in the Windows sound menu anymore if the headphone jack is plugged out).
Sound:
My ZOTAC ZBOX CI547 nano running Windows 10 Pro 64 Bit is the only source that I’m using.
I’m only using my Sonata HD Pro in 16 Bit 44.1 kHz mode, just like any other DAC that supports the Red Book standard.
Volume Control:
Independent hardware volume control on the HD Pro (12 steps without any muting feature) in addition to the source device’s digital control.
Coarse steps; I would have wished for more than 12, but ultimately the independent control is a definite plus as it allows for finding a desirably quiet listening level even with extremely sensitive in-ears as well as quick volume adjustments while listening to music or watching a film without having to interfere with the Windows software slider.
Tactile activation point neither too stiff nor soft – ultimately somewhat more on the stiffer side.
The last volume setting seems to be saved.
Hiss Performance:
Practically hiss-fee – even less audible hiss than my Apple USB-C to Headphone Jack Adapter (A2155) that is already among the very best devices on the market when it comes to hiss performance with extremely sensitive in-ears (such as my Campfire Audio Andromeda and Ostry KC06A) regardless of price point. Hiss only becomes more audible with extremely sensitive IEMs when used at higher hardware volume control settings.
Even quieter than my RME ADI-2 DAC from its PHONES output and just a hair “hissier” than its IEM output that’s basically hiss-free (just the tiniest, slightest imaginable bit of hiss audible with my Andromeda on some days with very high concentration) – that’s definitely state of the art hiss performance and among the best of the best devices in this regard.
Frequency Response (no Load):
No surprise here – as flat as it is supposed to be, with a slow roll-off filter applied.
Output Impedance (Ultimate Ears Triple.Fi 10 as Load):
Based on the frequency response deviation, the output impedance is calculated to be below only 0.2 Ohms, which is very low and therefore perfectly suitable for all low impedance multi-BA in-ears with a high impedance swing.
Subjective Listening Impressions:
Neutral, clean and audibly transparent with no abnormalities that could be heard. No real surprise since independent objective measurements indicate excellent performance anyway.
- - - - - - - - - - - -
Compared to my Apple USB-C to Headphone Jack Adapter (A2155):
With the Sonata’s software volume being set to 100% and its hardware volume to 1/12 and, and the Apple’s volume set to 1%, the Sonata’s base volume is lower, which is a definite benefit for me, and since it can be further lowered using the Windows software volume, listening very quietly just barely above the audible threshold is easily possible even with extremely sensitive in-ears.
Sonata ever so slightly “softer”/”smoother” cymbal/high note edge rendering in direct head-to-head comparison with extremely sensitive, low impedance in-ears – Apple “harder”/”sharper” in comparison, which is about the only “big” audible difference in terms of small, subtle differences that one may or may not perceive (pretty much only) in a direct head-to-head comparison (definitely a matter of individual preference, and I slightly prefer the Apple’s “harder” presentation in a critical listening, direct a-/b-comparison scenario whereas I don’t care much at all for concentrated but more recreational music listening), with the only other nuance of differences that I can perceive in this forced direct comparison being the spatial reproduction that appears slightly smaller but with a more “focused” centre image on the Sonata aHD Pro nd a “wider” presentation on the Apple that however results in a slightly “less focused” centre image image presentation when compared to the HD Pro (something that I personally probably prefer on my TempoTec a little over my Apple, but then again only really in a direct “critical” comparison whereas the small difference in spatial reproduction becomes much less obvious with a bit more time between switching between these devices).
Take what you want out of this more “critical listening” focused direct comparison (conducted with very sensitive, low impedance in-ears – as it is true in most cases, there should be no audible differences with inefficient, lower sensitivity full-sized headphones since those minor differences described just above that may be audible in a direct comparison when extremely sensitive low impedance IEMs are used as critical loads are already gone entirely when I use both devices with less sensitive, higher impedance in-ears) – what’s very clear though is that both devices are perfectly clean and audibly transparent, neutral sounding.
Realistically speaking, the Apple USB-C to Headphone Jack Adapter (A2155) already offers nearly top-tier audio performance despite its super low price (after all it is audibly transparent thanks to objectively surpassing CD Red Book standards and) and is only despised by some people because of their anti-Apple and anti cheap audio products bias; so except for being even closer to being entirely hiss-free with extremely sensitive in-ears than the Apple dongle already is when an “empty” audio file is played, it is mainly some additional useful features (additional and independent analogue 12-step volume control and micro USB input; although at the cost of some of the Apple’s features missing (in-line remote control commands and in-line microphone support)) and build quality/appearance as well as accessories that make the Sonata HD Pro a device that is worthy of costing more than the A2155, with both performing excellently when it comes to audio reproduction with critical low impedance, high sensitivity loads (the TempoTec even a little more so despite being priced comparatively very low as well).
Conclusion:
State of the art hiss performance with extremely sensitive in-ears, very low output impedance, and otherwise very good objective acoustic measurements as well. Ability to listen very quietly just above the audible threshold thanks to the incorporation of additional independent analogue volume control (unfortunately only 12 coarse steps, though).
Last but not least, the accessible pricing is very fair as well, and even without keeping the price in mind, the Sonata HD Pro is one of the very few small, portable USB DACs that are able to match or surpass the Apple A2155 USB-C to Headphone Jack Adapter’s objective audio performance.
Photos:
TempoTec Sonata HD Pro
Source:
Purchased at a discount for the purpose of a product review.
Miscellaneous:
Unboxing experience nicer than expected – decent packaging with accessories such as a micro USB to USB-C cable, USB A to USB-C adapter (made of metal just like the cable’s plugs) and a Hi-Res sticker.
A cheap feeling carrying case that is made of metal is included as well – I would have preferred a zipped pouch or hard case, but it’s still better than nothing at all, and nicely padded on the inside.
Nice build quality and finish.
I like the design.
Nice translucent orange volume control buttons.
I don’t like the big DSD logo etching on the back of the device.
Reasonable size.
What I really like is that the female micro USB socket feels solid and that one can use any suitable cable with the DAC.
Short connection cable is supple and looks nice.
Unfortunately there is no LED/operation indicator.
What’s definitely nice is that it automatically detects whether a 3.5 mm plug is inserted or not and accordingly enables/disables the output (doesn’t show up in the Windows sound menu anymore if the headphone jack is plugged out).
Sound:
My ZOTAC ZBOX CI547 nano running Windows 10 Pro 64 Bit is the only source that I’m using.
I’m only using my Sonata HD Pro in 16 Bit 44.1 kHz mode, just like any other DAC that supports the Red Book standard.
Volume Control:
Independent hardware volume control on the HD Pro (12 steps without any muting feature) in addition to the source device’s digital control.
Coarse steps; I would have wished for more than 12, but ultimately the independent control is a definite plus as it allows for finding a desirably quiet listening level even with extremely sensitive in-ears as well as quick volume adjustments while listening to music or watching a film without having to interfere with the Windows software slider.
Tactile activation point neither too stiff nor soft – ultimately somewhat more on the stiffer side.
The last volume setting seems to be saved.
Hiss Performance:
Practically hiss-fee – even less audible hiss than my Apple USB-C to Headphone Jack Adapter (A2155) that is already among the very best devices on the market when it comes to hiss performance with extremely sensitive in-ears (such as my Campfire Audio Andromeda and Ostry KC06A) regardless of price point. Hiss only becomes more audible with extremely sensitive IEMs when used at higher hardware volume control settings.
Even quieter than my RME ADI-2 DAC from its PHONES output and just a hair “hissier” than its IEM output that’s basically hiss-free (just the tiniest, slightest imaginable bit of hiss audible with my Andromeda on some days with very high concentration) – that’s definitely state of the art hiss performance and among the best of the best devices in this regard.
Frequency Response (no Load):
No surprise here – as flat as it is supposed to be, with a slow roll-off filter applied.
Output Impedance (Ultimate Ears Triple.Fi 10 as Load):
Based on the frequency response deviation, the output impedance is calculated to be below only 0.2 Ohms, which is very low and therefore perfectly suitable for all low impedance multi-BA in-ears with a high impedance swing.
Subjective Listening Impressions:
Neutral, clean and audibly transparent with no abnormalities that could be heard. No real surprise since independent objective measurements indicate excellent performance anyway.
- - - - - - - - - - - -
Compared to my Apple USB-C to Headphone Jack Adapter (A2155):
With the Sonata’s software volume being set to 100% and its hardware volume to 1/12 and, and the Apple’s volume set to 1%, the Sonata’s base volume is lower, which is a definite benefit for me, and since it can be further lowered using the Windows software volume, listening very quietly just barely above the audible threshold is easily possible even with extremely sensitive in-ears.
Sonata ever so slightly “softer”/”smoother” cymbal/high note edge rendering in direct head-to-head comparison with extremely sensitive, low impedance in-ears – Apple “harder”/”sharper” in comparison, which is about the only “big” audible difference in terms of small, subtle differences that one may or may not perceive (pretty much only) in a direct head-to-head comparison (definitely a matter of individual preference, and I slightly prefer the Apple’s “harder” presentation in a critical listening, direct a-/b-comparison scenario whereas I don’t care much at all for concentrated but more recreational music listening), with the only other nuance of differences that I can perceive in this forced direct comparison being the spatial reproduction that appears slightly smaller but with a more “focused” centre image on the Sonata aHD Pro nd a “wider” presentation on the Apple that however results in a slightly “less focused” centre image image presentation when compared to the HD Pro (something that I personally probably prefer on my TempoTec a little over my Apple, but then again only really in a direct “critical” comparison whereas the small difference in spatial reproduction becomes much less obvious with a bit more time between switching between these devices).
Take what you want out of this more “critical listening” focused direct comparison (conducted with very sensitive, low impedance in-ears – as it is true in most cases, there should be no audible differences with inefficient, lower sensitivity full-sized headphones since those minor differences described just above that may be audible in a direct comparison when extremely sensitive low impedance IEMs are used as critical loads are already gone entirely when I use both devices with less sensitive, higher impedance in-ears) – what’s very clear though is that both devices are perfectly clean and audibly transparent, neutral sounding.
Realistically speaking, the Apple USB-C to Headphone Jack Adapter (A2155) already offers nearly top-tier audio performance despite its super low price (after all it is audibly transparent thanks to objectively surpassing CD Red Book standards and) and is only despised by some people because of their anti-Apple and anti cheap audio products bias; so except for being even closer to being entirely hiss-free with extremely sensitive in-ears than the Apple dongle already is when an “empty” audio file is played, it is mainly some additional useful features (additional and independent analogue 12-step volume control and micro USB input; although at the cost of some of the Apple’s features missing (in-line remote control commands and in-line microphone support)) and build quality/appearance as well as accessories that make the Sonata HD Pro a device that is worthy of costing more than the A2155, with both performing excellently when it comes to audio reproduction with critical low impedance, high sensitivity loads (the TempoTec even a little more so despite being priced comparatively very low as well).
Conclusion:
State of the art hiss performance with extremely sensitive in-ears, very low output impedance, and otherwise very good objective acoustic measurements as well. Ability to listen very quietly just above the audible threshold thanks to the incorporation of additional independent analogue volume control (unfortunately only 12 coarse steps, though).
Last but not least, the accessible pricing is very fair as well, and even without keeping the price in mind, the Sonata HD Pro is one of the very few small, portable USB DACs that are able to match or surpass the Apple A2155 USB-C to Headphone Jack Adapter’s objective audio performance.
Photos:
About myself
I'm 38, so my hearing is possibly not the same as in my 20s. I like various music genres, mainly prog rock/metal, blues and some classical music. I'm not into rap/hiphop/EDM so I don't have a strong preference regarding excessive bass quantity.
Some background
I've purchased this item myself, it was new. I have no affiliation with the manufacturer nor was this a sponsored review of part of a loan tour.
Unboxing
Although this is a pretty cheap product, the packaging was stylish.
Usability
I had no issues with an Android phone and two Windows 10 machines at all. Works without installing anything and keeps working if you install the drivers.
Unfortunately the volume control is not the best as the "distance" between the steps is too big.
An even bigger problem build quality. The USB port on it was so sensitive to the slightest movement of the cable that it got disconnected (not physically) even if I just touched it. It was impossible to use the unit on the go. I contacted the seller and got a free replacement, I did not even have to send the first unit back. Unfortunately I had the same problem with the new unit too, although not as severely. I did not bother asking for a third one.
Sound
Sound is good, especially for a dongle. Well extended at both ends of the frequency range, clear and transparent.
Pairing
It can drive a HiFiMAN HE400i, a Denon 7200 or a Focal Elegia with enough power and authority. However, it definitely cannot drive a MrSpeakers Ether C.
Conclusion
If you are lucky and get a unit that works properly and have an easy to drive headphone or IEM, then this will be a great companion.
I'm 38, so my hearing is possibly not the same as in my 20s. I like various music genres, mainly prog rock/metal, blues and some classical music. I'm not into rap/hiphop/EDM so I don't have a strong preference regarding excessive bass quantity.
Some background
I've purchased this item myself, it was new. I have no affiliation with the manufacturer nor was this a sponsored review of part of a loan tour.
Unboxing
Although this is a pretty cheap product, the packaging was stylish.
Usability
I had no issues with an Android phone and two Windows 10 machines at all. Works without installing anything and keeps working if you install the drivers.
Unfortunately the volume control is not the best as the "distance" between the steps is too big.
An even bigger problem build quality. The USB port on it was so sensitive to the slightest movement of the cable that it got disconnected (not physically) even if I just touched it. It was impossible to use the unit on the go. I contacted the seller and got a free replacement, I did not even have to send the first unit back. Unfortunately I had the same problem with the new unit too, although not as severely. I did not bother asking for a third one.
Sound
Sound is good, especially for a dongle. Well extended at both ends of the frequency range, clear and transparent.
Pairing
It can drive a HiFiMAN HE400i, a Denon 7200 or a Focal Elegia with enough power and authority. However, it definitely cannot drive a MrSpeakers Ether C.
Conclusion
If you are lucky and get a unit that works properly and have an easy to drive headphone or IEM, then this will be a great companion.
holicst
Good to know. I knew I won't remove the cable and I had a replacement shipped, so I gave the glue a try.
cel4145
Did you figure out if it was the cable or the port that was the issue?
I actually have two that I bought six months ago they don't have this problem. but I just bought one for somebody for a Christmas present, so now I figure a better open up the box and see if it has this issue.
I actually have two that I bought six months ago they don't have this problem. but I just bought one for somebody for a Christmas present, so now I figure a better open up the box and see if it has this issue.
holicst
It was the port 
*using my own cable because my vivo Z1 pro still using micro usb
*using Alpha n Delta KS1 in this review
*after using this for a few days, the harsh sounding upper mid is gone. afraid my ears playing tricks on me, i stopped using it for a week and compared to another DAP as refference only to confirm that i need to revised some of my review content.
About me
So, this is my first experience with USB Dongles so ive no idea about the norm, what to expect, and how average dongles should sound. But yes, my first experience with dongles is full of disappointment. so please just regard this is a review from a guy who expect too much and know nothing about dongles standard.
ive been using only using DAP in the past 2 years, im experienced with shanling M5S, M6, Fiio M11 and pro version, some AKs, some Sonys and a lot of stuffs including Modded DAP.
it's been around 2 years since the last time i used an External DAC Such as Radius, Picolo Dac, Topping Nx4, mojo, and stuffs. I dont really update my ear about newer DAC on the market
i will cut to the case, i wont bother discussing spec and form factor as you can scroll to find that information and i've no new information to add.
Review of using and Foobar Spotify
The first thought crossing my mind was "where the hell my da*n $40 go". Although i can agree with a lot of reviewers inside and outside headfi that using this dongle will give you fuller, deeper, and thicker bass, and brighter upper mid. but, other than the bass, every improvement i said is really small, so small that i have to put an effort to know what difference it actually made.
My previous experience with external DACs are always positive, they carry enough improvement for it to be easily noticed. But using this dongle is a meh. The difference in tonality and timbre is next to nothing. tonality and timbre are two major chracteristic that make me want to buy a DAC or DAP in the first place. However using Sonata HD Pro, The timbre and tonality are almost the same like using my phone -_-
The other technical aspect is also tad small improvement. small improvement in transparency, a little bit cleaner although a little grainy, please it is really noticeable grain yet nobody mention it, try to use any affordable DAC such as NX4 and you know what does non grainy sound was like, or if you have budget you can buy sony Nw a55 or ZX300 for true clean sound as a reference. This dongle only gives slightly better separation, little to no improvement on imaging.
Like please, people debating whether cable and eartips really improve the sound while the real culprit is USB dongle, duh..
i dont know if other dongle give you similar experience like this, but if it does, you better spend your money elsewhere like buying some cheap secondhand external DAC, decent cable or even just a pair of eartips. On the side note, using USB Audio Player Pro sure give this dongle extra edge, but im expecting to use spotify for casual listening session so it doesnt serve its main purpose.
Review with Audio Player Pro (UAPP)
Activating UAPP seriously give improvement to this dongle since the UAPP able to bypass the android driver and let the Dongle to fully process the song file directly to its driver.
With UAPP, theres noticeable alteration in timbre and I kinda understand about the sound characteristic of Cirrus chip (the one used in this dongle) that has been hiding before. Vocal sounds more forward, the bass get even deeper and tight, UAPP aso slightly improve dynamic range.
Verdict
Using this dongle will result in no significant upgrade in terms of sound quality compared to using my phone in usual way. Using UAPP, although it gives an extra edge, it still an inefficient purchase at the price of $40
if you have any plan to buy dongle, just buy anything cheaper or just invest in other resource like cable and stuffs.
The sound difference is there and observable, but using a mid level DAC chip such as CS43131, i kinda expect something more out of it.
cel4145
The HiDISZ S8 is the same unit in a different enclosure with different branding
https://www.audiosciencereview.com/...dizs-s8-usb-c-headphone-adapter-review.10823/
It measures so freaking accurate that it is easily arguable that it has no noise and distortion within the range of human hearing. It doesn't change the sound at all.
https://www.audiosciencereview.com/...dizs-s8-usb-c-headphone-adapter-review.10823/
It measures so freaking accurate that it is easily arguable that it has no noise and distortion within the range of human hearing. It doesn't change the sound at all.
Gianluigib
It's really strange, maybe your unit is defective .
Packaging :
Packaging was a nice experience for me . It came inside of a tin box. (now I'm using this tin box to store my eartips)
Inside the box, there is a micro USB to lighting cable, micro USB to type C cable, USB C to USB A cable, hi-res sticker and the sonata hd pro itself.
Build quality:
Build quality of the sonata hd pro is good, made of aluminum, painted black and there is two orange volume buttons (+ and -).
There is a 3.5mm jack on the top side and on the bottom side there is a micro USB port .
DSD logo on the back, and tempotec logo on the front.
so build quality is nice and sturdy. It won't break on you easily.
Technical specifications :
2vrms of power output
circus logic cs43131
32 bit /38khz
DSD 256 playback
here is a trick,
It has two gain control,
but it's automatic, to trigger the high gain mode, you can use a simple 3.5mm female to male adaptor , and enjoy full 2vrms power.
Sound :
Lows:
bass is fuller and tight, with a good amount of weight on it, no muddy or muffled bass. I'm not a bass head. so the bass it produced is enough for me. loud, tight, fast, energetic and enjoyable.
Mids:
Vocals are above avarage. Nothing extraordinary, yet enjoyable and soothing. Nothing distorted, everything is clean. In short, mids are more smooth than the texture.
Highs:
Slightly highlighted treble. But no sibilance or piercing highs. You'll love the guitar string sound coming form it.
Detailed analytical sound with good resolution. High gain mode sounds a bit better to me. For this price, you can't go wrong.
Tracks i mainly used
Metallica - nothing else matters
Europe - the final countdown
Guns and Roses - november rain, sweet child o' mine
Pink Floyd - comfortably numb
Linkin Park - lost in the eco, crawling, heavy
Eminem - recovery (full album)
Madona - papa don't preach, into the groove
Lady gaga - million reasons, marry the night, telephone
Packaging was a nice experience for me . It came inside of a tin box. (now I'm using this tin box to store my eartips)
Inside the box, there is a micro USB to lighting cable, micro USB to type C cable, USB C to USB A cable, hi-res sticker and the sonata hd pro itself.
Build quality:
Build quality of the sonata hd pro is good, made of aluminum, painted black and there is two orange volume buttons (+ and -).
There is a 3.5mm jack on the top side and on the bottom side there is a micro USB port .
DSD logo on the back, and tempotec logo on the front.
so build quality is nice and sturdy. It won't break on you easily.
Technical specifications :
2vrms of power output
circus logic cs43131
32 bit /38khz
DSD 256 playback
here is a trick,
It has two gain control,
but it's automatic, to trigger the high gain mode, you can use a simple 3.5mm female to male adaptor , and enjoy full 2vrms power.
Sound :
Lows:
bass is fuller and tight, with a good amount of weight on it, no muddy or muffled bass. I'm not a bass head. so the bass it produced is enough for me. loud, tight, fast, energetic and enjoyable.
Mids:
Vocals are above avarage. Nothing extraordinary, yet enjoyable and soothing. Nothing distorted, everything is clean. In short, mids are more smooth than the texture.
Highs:
Slightly highlighted treble. But no sibilance or piercing highs. You'll love the guitar string sound coming form it.
Detailed analytical sound with good resolution. High gain mode sounds a bit better to me. For this price, you can't go wrong.
Tracks i mainly used
Metallica - nothing else matters
Europe - the final countdown
Guns and Roses - november rain, sweet child o' mine
Pink Floyd - comfortably numb
Linkin Park - lost in the eco, crawling, heavy
Eminem - recovery (full album)
Madona - papa don't preach, into the groove
Lady gaga - million reasons, marry the night, telephone
Attachments
Disclaimer:
I bought the Tempotec Sonata HD Pro at my own expense at the recent Aliexpress sale.
Introduction:
The Tempotec Sonata HD Pro is a DAC/AMP dongle, and it seems to be the OEM version of Hidizs S8 but at half the price. Some folks in the other audio threads have kindly opened and measured the two and they seem comparable internally and on measurements. The Hidizs S8 is very well regarded here on audiosciencereview: https://www.audiosciencereview.com/...dizs-s8-usb-c-headphone-adapter-review.10823/
Last year, I had purchased two of the predecessor of the Sonata HD Pro (the non Pro version), and while this non Pro version was above average in sound quality, the non Pro version had a bad hiss with highly sensitive IEMs, and it could cook an egg after use (it really generated a lot of heat!). There was some clicking with changing music tracks and it had no volume controller. The Sonata HD Pro promises to fix all these issues and for an affordable price of $40ish USD, so I was excited to purchase the Sonata HD Pro to check it out.
Specifications:
Recommended Headphone Maximum Impedance: 32-50 Ohm
Input Type: Micro-USB
Body Material: Aluminum
Dimensions (WxHxD): 1.85in x 0.66in x 0.31in
PCM: Yes
DAC Model: CS43131
WIFI: No
MIC INPUT: NO
Built-in Battery: No
DSD (Direct Stream Digital): Yes, DSD SUPPORT: DOP128 NATIVE 256
Output Power: 60MW/32
Signal To Noise Ratio: 126
Bluetooth: No
24bit/192kH: YES
32bit/384kHz: YES
DSD64: NATIVE & DOP
DSD128: NATIVE & DOP
DSD256: NATIVE
SNR: 128dB
DNR: 128dB
USB DRIVER: YES
ASIO: YES
Packing:
- 1x Sonata HD Pro dongle (the shops generally sell an Apple compatible version and an Android compatible one, or even a package that is compatible with both, so choose what you prefer).
- 1x Adapter (female type-c to male USB-A).
- 1x Hi-Res logo sticker.
- 1x OTG cable (micro-usb to type-c).
Build:
The Sonata HD Pro has a great sturdy build, yet it is very light, and comes in a small size that is very portable. All the necessary cables/adaptors come in the package, but if you want to use it with some micro USB smartphones, you might need to get some OTG cables/adaptors.
It has a built in volume controller and the cables are pretty well braided. I think it should last a long time, definitely until the next hypetrain dongle DAC/AMP comes!
Function:
The Sonata HD Pro is a plug and play set, and is compatible with desktops/laptops, apple and android phones (with OTG cables/adaptors if needed). *please ask on the headfi or audio forums regarding compatibility of smartphones as there have been reports that certain android models are not compatible with the Sonata HD Pro. FWIW I have no issues with the Sonata HD Pro on a few variants of Samsung smartphones (Note 5, J1 ACE).
The volume can be changed on the Tempotec Sonata HD Pro and/or at source (eg phone, desktop/laptop). Generally, most would agree to max out the volume at the source and do fine tuning on the dongle. Unfortunately, the volume steps on the Sonata HD Pro are pretty far apart, so for fine tuning, I prefer to do volume changes at the source.
One good thing is that the Sonata HD Pro's in built volume controller remains at the last volume set even after it is disconnected. When nothing is connected to the Sonata HD Pro's 3.5mm port, the DAC turns off, thus saving battery life. Very ingenious and user friendly ideas were incorporated here!
It doesn't eat that much battery from my smartphone usage, and it doesn't heat up at all compared to the non Pro predecessor.
It can go up to 2V output but has an auto gain setting based on the impedance of the connected transducer. I ever almost blew up my ear drums with the non Pro version when I previously connected a highly sensitive IEM straight after a low sensitivity IEM (and I forgot to change the volume), so this is quite an innovative idea on the manufacturer's part with the Sonata HD Pro version.
Technical aspects:
The Sonata HD Pro can play DSD 256 natively with a sample rate till 32bits/384 kHz.
The Sonata HD Pro sports a neutral sound signature (with a very slight tinge of warmth), with great improvement in dynamics, details and with low THD.
I did not note any hiss nor clicking with changing tracks midway, and the sound is very transparent, clean and layered on a dark background.
I like that I didn't detect any subbass roll off (unlike some other DAC/AMPs), and there is no colouration to the bass frequencies. Bass texture is improved with the Sonata HD Pro. Mids are clean and detailed, with good timbre. The Sonata HD Pro provides good treble extension, with no sibiliance. I definitely hear better resolution/clarity/details/separation/imaging with it, compared to just a low end smart phone source, and transients in music are quicker.
Soundstage on the Sonata HD Pro is above average compared to a low end smartphone.
The Sonata HD Pro has a very low output impedance. I usually struggle hard to find a good source pairing with the Audiosense T800 as this is one finicky IEM with a very low impedance of 9.2 ohms. The Sonata HD Pro drives it very well with no hiss at all. Perfect pairing!
With very high impedance cans eg ~ 300 ohms, the Sonata HD Pro doesn't do the best job and stuff sounds a bit flat with lack of dynamics. Then again, the Sonata HD Pro wasn't marketed to power such gear as per the specs, so nothing I can fault the Sonata HD Pro as such in this area. It could power almost all of my IEMs with room to spare, maybe except for planar type IEMs which do need some juice.
Comparisons:
As above, the Sonata HD Pro truly lives up to the "Pro" moniker, with better specs than the non Pro version. The Sonata HD Pro doesn't come with a mic and it cannot be used for phone calls, unlike certain flash versions of the non Pro version.
Versus the non Pro, the Sonata HD Pro has:
- Better subbass extension than non Pro
- No hiss with highly sensitive IEMs, unlike non Pro
- Does not heat up, unlike non Pro
- No clicking when changing tracks, unlike non Pro
- Volume controller, unlike non Pro
- Better technicalities, compared to non Pro
Conclusion:
This is one versatile and great sounding DAC/AMP dongle I'm not gonna leave the house without. It provides a great upgrade in sound quality for smartphone and desktops for cheap. It has so many good points and the term "superb price to performance ratio" was created for this baby.
I'm actually done chasing the "upgradiitis" bug for audio sources with this, but I'm so impressed with this set that I'm probably gonna get a second Sonata HD Pro during the upcoming Aliexpress sale! 10/10 for me!
I bought the Tempotec Sonata HD Pro at my own expense at the recent Aliexpress sale.
Introduction:
The Tempotec Sonata HD Pro is a DAC/AMP dongle, and it seems to be the OEM version of Hidizs S8 but at half the price. Some folks in the other audio threads have kindly opened and measured the two and they seem comparable internally and on measurements. The Hidizs S8 is very well regarded here on audiosciencereview: https://www.audiosciencereview.com/...dizs-s8-usb-c-headphone-adapter-review.10823/
Last year, I had purchased two of the predecessor of the Sonata HD Pro (the non Pro version), and while this non Pro version was above average in sound quality, the non Pro version had a bad hiss with highly sensitive IEMs, and it could cook an egg after use (it really generated a lot of heat!). There was some clicking with changing music tracks and it had no volume controller. The Sonata HD Pro promises to fix all these issues and for an affordable price of $40ish USD, so I was excited to purchase the Sonata HD Pro to check it out.
Specifications:
Recommended Headphone Maximum Impedance: 32-50 Ohm
Input Type: Micro-USB
Body Material: Aluminum
Dimensions (WxHxD): 1.85in x 0.66in x 0.31in
PCM: Yes
DAC Model: CS43131
WIFI: No
MIC INPUT: NO
Built-in Battery: No
DSD (Direct Stream Digital): Yes, DSD SUPPORT: DOP128 NATIVE 256
Output Power: 60MW/32
Signal To Noise Ratio: 126
Bluetooth: No
24bit/192kH: YES
32bit/384kHz: YES
DSD64: NATIVE & DOP
DSD128: NATIVE & DOP
DSD256: NATIVE
SNR: 128dB
DNR: 128dB
USB DRIVER: YES
ASIO: YES
Packing:
- 1x Sonata HD Pro dongle (the shops generally sell an Apple compatible version and an Android compatible one, or even a package that is compatible with both, so choose what you prefer).
- 1x Adapter (female type-c to male USB-A).
- 1x Hi-Res logo sticker.
- 1x OTG cable (micro-usb to type-c).
Build:
The Sonata HD Pro has a great sturdy build, yet it is very light, and comes in a small size that is very portable. All the necessary cables/adaptors come in the package, but if you want to use it with some micro USB smartphones, you might need to get some OTG cables/adaptors.
It has a built in volume controller and the cables are pretty well braided. I think it should last a long time, definitely until the next hypetrain dongle DAC/AMP comes!
Function:
The Sonata HD Pro is a plug and play set, and is compatible with desktops/laptops, apple and android phones (with OTG cables/adaptors if needed). *please ask on the headfi or audio forums regarding compatibility of smartphones as there have been reports that certain android models are not compatible with the Sonata HD Pro. FWIW I have no issues with the Sonata HD Pro on a few variants of Samsung smartphones (Note 5, J1 ACE).
The volume can be changed on the Tempotec Sonata HD Pro and/or at source (eg phone, desktop/laptop). Generally, most would agree to max out the volume at the source and do fine tuning on the dongle. Unfortunately, the volume steps on the Sonata HD Pro are pretty far apart, so for fine tuning, I prefer to do volume changes at the source.
One good thing is that the Sonata HD Pro's in built volume controller remains at the last volume set even after it is disconnected. When nothing is connected to the Sonata HD Pro's 3.5mm port, the DAC turns off, thus saving battery life. Very ingenious and user friendly ideas were incorporated here!
It doesn't eat that much battery from my smartphone usage, and it doesn't heat up at all compared to the non Pro predecessor.
It can go up to 2V output but has an auto gain setting based on the impedance of the connected transducer. I ever almost blew up my ear drums with the non Pro version when I previously connected a highly sensitive IEM straight after a low sensitivity IEM (and I forgot to change the volume), so this is quite an innovative idea on the manufacturer's part with the Sonata HD Pro version.
Technical aspects:
The Sonata HD Pro can play DSD 256 natively with a sample rate till 32bits/384 kHz.
The Sonata HD Pro sports a neutral sound signature (with a very slight tinge of warmth), with great improvement in dynamics, details and with low THD.
I did not note any hiss nor clicking with changing tracks midway, and the sound is very transparent, clean and layered on a dark background.
I like that I didn't detect any subbass roll off (unlike some other DAC/AMPs), and there is no colouration to the bass frequencies. Bass texture is improved with the Sonata HD Pro. Mids are clean and detailed, with good timbre. The Sonata HD Pro provides good treble extension, with no sibiliance. I definitely hear better resolution/clarity/details/separation/imaging with it, compared to just a low end smart phone source, and transients in music are quicker.
Soundstage on the Sonata HD Pro is above average compared to a low end smartphone.
The Sonata HD Pro has a very low output impedance. I usually struggle hard to find a good source pairing with the Audiosense T800 as this is one finicky IEM with a very low impedance of 9.2 ohms. The Sonata HD Pro drives it very well with no hiss at all. Perfect pairing!
With very high impedance cans eg ~ 300 ohms, the Sonata HD Pro doesn't do the best job and stuff sounds a bit flat with lack of dynamics. Then again, the Sonata HD Pro wasn't marketed to power such gear as per the specs, so nothing I can fault the Sonata HD Pro as such in this area. It could power almost all of my IEMs with room to spare, maybe except for planar type IEMs which do need some juice.
Comparisons:
As above, the Sonata HD Pro truly lives up to the "Pro" moniker, with better specs than the non Pro version. The Sonata HD Pro doesn't come with a mic and it cannot be used for phone calls, unlike certain flash versions of the non Pro version.
Versus the non Pro, the Sonata HD Pro has:
- Better subbass extension than non Pro
- No hiss with highly sensitive IEMs, unlike non Pro
- Does not heat up, unlike non Pro
- No clicking when changing tracks, unlike non Pro
- Volume controller, unlike non Pro
- Better technicalities, compared to non Pro
Conclusion:
This is one versatile and great sounding DAC/AMP dongle I'm not gonna leave the house without. It provides a great upgrade in sound quality for smartphone and desktops for cheap. It has so many good points and the term "superb price to performance ratio" was created for this baby.
I'm actually done chasing the "upgradiitis" bug for audio sources with this, but I'm so impressed with this set that I'm probably gonna get a second Sonata HD Pro during the upcoming Aliexpress sale! 10/10 for me!
digititus
One of the best audio purchases I have made. Really clean and detailed sound.
amer123
Thanks for the review! How much was it on sale for?
baskingshark
@amer123 I bought mine about 3.5 months back at $34 USD from Aliexpress (this is android compatible version, not the apple version, which I think costs a bit more).
TEMPOTEC HD PRO REVIEW
It became more evident that Tempotec wants to trace their own road when they launch their own ultra-portable DAP call V1A. I review very positively this little do-it-all DAP last year and still think it’s one of the most fully packed 100$ DAP we can find nowadays.
Now, it looks like Tempotec still wants to push the boundaries of high fidelity sound at a very affordable price by launching a new ultra-portable DAC-AMP call Sonata HD PRO. At less than 50$, these little things offer the must promising specs in terms of output power, DAC chip and signal-to-noise ratio. In fact, it looks too beautiful to be true, but I can spoil you already by saying it-is-truly-marvelous.
Let’s see in this review if the HD PRO can be considered as nothing less than the best value ultra-portable DAC-AMP in the sub-100$ market.
You can buy this product directly from the official Tempotec store HERE.
INTERN
Not a lot to write here, we only know the DAC part which is the Cirrus CS43131. It’s very possible that it uses no independent amping as this DAC have integrated amp that can push 30mW per channel at 32ohm. As well, it has an impressive 2V of power output. Dynamic range is really impressive at 121db SNR and total harmonic distortion is kept extremely low at 115db. As well, it can play a sample rate up to 32bi/384khz.
PACKAGING
We are granted by a small metal box with all accessories that are vital for hooking this tiny DAC-Amp. For this price, it’s impressive to have nice braided cables like this which include one micro USB to USB-C, one micro USB to lightning and even a USB-C to 2.0 USB converter for laptop use. I review pricier DAC-AMP lately that do not include any cable apart from a long one for charging purpose more than portable purpose.
CONSTRUCTION
Not a lot to talk about this low profile DAC-AMP, it has a very minimalist design all made of metal. It’s a black parallelepiped with a + and – buttons for volume control and that’s it. The headphone jack is okay, nothing impressive as it’s the only plastic part with buttons. About buttons, they are not the most responsive ones due to thin space of pressing action but it does have the click noise and feel and work properly (I try to be snobbish here). I feel this thing is sturdy and can be dropped on the floor without worrying it will break easily.
COMPATIBILITY
This device is plug and play marvel and work flawlessly without any disconnecting or clicking issue. Whatever I hook it to my laptop or any of my phones (LG G6, Samsung A50) it is recognized automatically and don’t need drivers or anything.
You need to connect something to headphone output so the HD PRO get activated and recognize. As well, it memorizes the volume of last usage, so I suggest you to always lower volume before first listen. Talking about volume, it can be controlled with your phone too. Strangely, it bypass my laptop volume but not my phones.
POWER OUTPUT
The HD PRO is neither the must or the less powerful ultra portable DAC-AMP out there, but it has a solid 2volt of power output. To take full advantage of this power, you will need to connect a 3.5mm male to female cable, this way, it will bypass the gain adaptation. For example, when I do this I was able to drive at full potential my Final Audio E5000, but if I connect it directly, the dynamic will not be enough. This DAC-AMP is supposed to be able to deliver more than 64mW at 32ohm even if stated lower (60mW), I read it can go up to 110mW too, so this is unclear exact max power output it can deliver, one thing sure it’s among the highest one in its price range. On Audioscience, they stated it was able to drive properly the Hifiman HE400i, wich is incredible if true. Anyway, I confirm it can drive any IEM even low sensitivity hard to drive, it’s more powerful than any dongle as well as Audirect BEAM. Even at high volume their no distortion and sound stay clean. As well, no hiss problem with sensitive IEM as it have low impedance output, wich permit me to drive my capricious Audiosense T800 without any issue.
Specs comparisons with SONATA HD (28$)
SOUND
The HD PRO has a very smooth yet engaging sound, perfectly neutral with high transparency and a wide manner of projecting music. Dynamic range is fully covered without any particular boost with the exception of perhaps just a little extra upper treble the permit to offer delicate high with a light touch of brilliance. No bass roll-off neither bass bump, no extra texture neither lacking any, it’s soft, natural slightly organic sound with excellent layering capability. As measure by Audioscience, the HD PRO (wich is find at twice the price under the name Hidizs S8) have extremly good SINAD (distortion+noise relative to our signal) of 114 dB, high Dynamic range and super low jitter, all this promising highly clean sound. Everything with the HD PRO sound effortless and cohesive, perhaps this will be boring for some, but for me it’s how I consider as ”reference sounding” a DAC-AMP as it never torture or disguise your music and it keep a completely black background so you can enjoy music with calm clarity.
In 5 words: Smooth, transparent, delicate, refined and accurate.
TIMBRE is soft, nuanced and natural. Free of grain or artificiality, with high level of transparency.
TONALITY is a hint warm and liquid, cohesive and perfectly balanced.
SOUNDSTAGE do gain in wideness and deepness as if the HD PRO inject air in the sound and improve panoramic rendering.
IMAGING too is improved over more congested decoding of a lot of other DAC i try, it’s really how layers of sound flow naturally and never overshadow each other.
BASS extends fully and is flat. It’s not boosted in punch or rumble but has a flexible articulation. Separation is clear, and when sub-bass occur, it is highly transparent and smooth.
MIDS are wide and airy, they sound very open and natural. Vocal tends to sound more transparent and polished than with other DAC-AMP, so again, slightly liquid in timbre but never dull or lacking in detail.
TREBLE is delicate, balanced, with a touch of beautiful brilliance to it. It never sounds too forwards and will tend to make bright iem less aggressive.
PAIRING with smooth earphones like the Moondrop STARFIELD will expend the soundstage wide and dept but do not thicken timbre or give more authority to bass, so perhaps the result is a little too laid back, but for me, I tend to really enjoy it, especially if I use full amping potential which will give a more dynamic punch. The Final Audio E5000 became more liquid sounding and transparent, gaining in delicate details and vocal clarity, making this a good pairing. The Audiosense T800 is a marvelous paring and sound more balanced and airy, soundstage and imaging gaining in articulation and bass being less boomy and more controlled. Another great pairing is with DITA FEALTY wich can sound too bright with some DAP or DAC-AMP and ironically sound its best with a 40$ DAC-AMP, delivering same level of details with a smoother, more natural and balanced sound. Simply put, the HD PRO will pair better with bright or bassy iem that need to gain in balance and smoothness, as it soft definition edge and add transparency without taming attack, this tend to give a more musical and inoffensive sound as well as improving layering and tonal balance.
COMPARISONS
VS AUDIRECT BEAM (100$)
Sound difference is quite intense between those two, especially in tonal balance and attack, but in SOUNDSTAGE too which is notably wider and more spacious with the HD PRRO, making the BEAM sound overly congested and intimate in comparisons. BASS extends until 20hz with HD PRO while it feels it cut before that with the BEAM wich have a more aggressive boost in mid-bass, making it energic but not naturally extended. The whole sound is smoother and more relaxed with HD PRO, yet it’s more balanced and transparent too while we have some kind of W shape vivid treatment with the BEAM. MIDS is more present and vocal have wider rendering, while with the BEAM vocal feel compressed in the middle of bright bass and treble. TREBLE is delicate with smooth decay for the HD PRO while the BEAM has sharp vivid highs that feel overly forward. In terms of output impedance, the BEAM is rather high at 10ohm while the HD PRO is supposed to be lower than 1ohm, what I can confirm is that the BEAM unbalance the sound of very sensitive Audiosense T800 while the HD PRO is perfectly stable and flat. Harmonic distortion is lower to with HD PRO, making background free of any grain, unlike the BEAM.
All in all, the Tempotec Sonata HD PRO has a more neutral, transparent, natural sound with greater sense of wide presence, as well it is more powerful in amping, have a cleaner background and lower impedance than the pricier Audirect BEAM.
VS XDUOO XQ-25 (50$):
This time it’s a Bluetooth DAC-AMP with the same ES9118P DAC chip than Audirect BEAM. For this comparison, I use the XQ-25 as a USB-DAC. This time SOUNDSTAGE is similar, but again slightly wider and better layered with the HD PRO. The XQ-25 is more grainy in texture timbre and lacks the beautiful transparency of HD PRO, making it more prompt to distortion or congestion with busy tracks at high volume. With only 32ohm of output power, again, the BASS sound dryer and lack the sub-bass extension of HD PRO. The whole sound of XQ25 feels more energic, punchy and snappy than more relaxed and neutral HD PRO, for some warm iem, the result will be more lively with XQ25, while too aggressive with bright iem, this makes the PRO more versatile and predictable. MIDS has more emphasis with the HD PRO and airy transparency to it, with the XQ25 it feels shadowed by mid-bass and whole treble, vocal is more enjoyable and natural with the HD PRO. TREBLE is notably crisper and faster in attack with the XQ-25, but less balanced and overly brilliant sometimes. Tonal balance is more refined and mature with the HD PRO, timbre is fuller even if smoother and bass and mids have better extension and presence.
All in all, XQ-25 isn’t bad for its price and I still suggest it for people wanting ultra-affordable Bluetooth DAC-amp that deliver energic slightly analytical sound and plan to use it with easy to drive IEM. Still, HD PRO have a better tonal balance and more versatile musicality that while not being the most energic is fullfill with nuance that gently enrich an highly refined musicality.
VS IKKO ZERDA ITM03 (100$)
Using a higher-end cirrus CS43198 DAC, the ZERDA sound quite different than HD PRO. SOUNDSTAGE is not as wide and airy, but IMAGING is more edgy and sharp. The overall sound is less flat with ZERDA, which has thicker bass and less transparent sound. Timbre is more textured with Zerda but less natural too. MIDS are slightly more recessed due to bass boost so it does not sound as open as HD PRO. Treble is more forwards and dig more details with Zerda, but as well it feels less balanced and peaky. It looks like output impedance is higher too because sensitive IEM doesn’t do well with the Zerda as it will make distort my Audiosense T800 while the HD PRO doesn’t.
All in all, Zerda is overpriced compared to more refined HD PRO performance.
CONCLUSION
Being able to have this type of well-articulated, tonally flat and lively sound at such a low price wasn’t imaginable some years ago. The Tempotec Sonata HD PRO really push the bar higher in term of portable DAC-AMP value and is without a doubt the best one you can get at this budget-friendly price.
Free of any distortion, black in the background, relatively high power output, low in impedance and high in signal-to-noise ratio, the HD PRO surpass by far my expectation and is a supreme recommendation from me.
( For more honest reviews, go to my official website HERE )
Though quite unknown and mysterious for most people, TEMPOTEC isn’t newcomer into the audio industry and has more than 20 years of experience working in PC Audio technology. Having made their hands-on digital audio decoding hardware, they begin into HiFi audio as an audio designer and engineer for Hidizs creating Sonata DAC-AMP Serie which includes the well-received DH100 model which is now sold by Tempotec under the name ‘’Serenade IDSD Plus’’.
It became more evident that Tempotec wants to trace their own road when they launch their own ultra-portable DAP call V1A. I review very positively this little do-it-all DAP last year and still think it’s one of the most fully packed 100$ DAP we can find nowadays.
Now, it looks like Tempotec still wants to push the boundaries of high fidelity sound at a very affordable price by launching a new ultra-portable DAC-AMP call Sonata HD PRO. At less than 50$, these little things offer the must promising specs in terms of output power, DAC chip and signal-to-noise ratio. In fact, it looks too beautiful to be true, but I can spoil you already by saying it-is-truly-marvelous.
Let’s see in this review if the HD PRO can be considered as nothing less than the best value ultra-portable DAC-AMP in the sub-100$ market.
You can buy this product directly from the official Tempotec store HERE.
INTERN
Not a lot to write here, we only know the DAC part which is the Cirrus CS43131. It’s very possible that it uses no independent amping as this DAC have integrated amp that can push 30mW per channel at 32ohm. As well, it has an impressive 2V of power output. Dynamic range is really impressive at 121db SNR and total harmonic distortion is kept extremely low at 115db. As well, it can play a sample rate up to 32bi/384khz.
PACKAGING
We are granted by a small metal box with all accessories that are vital for hooking this tiny DAC-Amp. For this price, it’s impressive to have nice braided cables like this which include one micro USB to USB-C, one micro USB to lightning and even a USB-C to 2.0 USB converter for laptop use. I review pricier DAC-AMP lately that do not include any cable apart from a long one for charging purpose more than portable purpose.
CONSTRUCTION
Not a lot to talk about this low profile DAC-AMP, it has a very minimalist design all made of metal. It’s a black parallelepiped with a + and – buttons for volume control and that’s it. The headphone jack is okay, nothing impressive as it’s the only plastic part with buttons. About buttons, they are not the most responsive ones due to thin space of pressing action but it does have the click noise and feel and work properly (I try to be snobbish here). I feel this thing is sturdy and can be dropped on the floor without worrying it will break easily.
COMPATIBILITY
This device is plug and play marvel and work flawlessly without any disconnecting or clicking issue. Whatever I hook it to my laptop or any of my phones (LG G6, Samsung A50) it is recognized automatically and don’t need drivers or anything.
You need to connect something to headphone output so the HD PRO get activated and recognize. As well, it memorizes the volume of last usage, so I suggest you to always lower volume before first listen. Talking about volume, it can be controlled with your phone too. Strangely, it bypass my laptop volume but not my phones.
POWER OUTPUT
The HD PRO is neither the must or the less powerful ultra portable DAC-AMP out there, but it has a solid 2volt of power output. To take full advantage of this power, you will need to connect a 3.5mm male to female cable, this way, it will bypass the gain adaptation. For example, when I do this I was able to drive at full potential my Final Audio E5000, but if I connect it directly, the dynamic will not be enough. This DAC-AMP is supposed to be able to deliver more than 64mW at 32ohm even if stated lower (60mW), I read it can go up to 110mW too, so this is unclear exact max power output it can deliver, one thing sure it’s among the highest one in its price range. On Audioscience, they stated it was able to drive properly the Hifiman HE400i, wich is incredible if true. Anyway, I confirm it can drive any IEM even low sensitivity hard to drive, it’s more powerful than any dongle as well as Audirect BEAM. Even at high volume their no distortion and sound stay clean. As well, no hiss problem with sensitive IEM as it have low impedance output, wich permit me to drive my capricious Audiosense T800 without any issue.
Specs comparisons with SONATA HD (28$)
| NAME | SONATA HD | SONATA HD PRO |
| TYPE | INTEGRATED | SPLIT |
| DAC CHIP | CS42L42 | CS43131 |
| MICROPHONE | YES | NO |
| 24bit/192kHz | YES | YES |
| 32bit/384kHz | NO | YES |
| DSD64 | NO | NATIVE & DOP |
| DSD128 | NO | NATIVE & DOP |
| DSD256 | NO | NATIVE |
| SNR | 114dB | 128dB |
| DNR | 114dB | 128dB |
| USB DRIVER | YES | YES |
| ASIO | YES | YES |
| iPhone/iPad | NO | YES |
The HD PRO has a very smooth yet engaging sound, perfectly neutral with high transparency and a wide manner of projecting music. Dynamic range is fully covered without any particular boost with the exception of perhaps just a little extra upper treble the permit to offer delicate high with a light touch of brilliance. No bass roll-off neither bass bump, no extra texture neither lacking any, it’s soft, natural slightly organic sound with excellent layering capability. As measure by Audioscience, the HD PRO (wich is find at twice the price under the name Hidizs S8) have extremly good SINAD (distortion+noise relative to our signal) of 114 dB, high Dynamic range and super low jitter, all this promising highly clean sound. Everything with the HD PRO sound effortless and cohesive, perhaps this will be boring for some, but for me it’s how I consider as ”reference sounding” a DAC-AMP as it never torture or disguise your music and it keep a completely black background so you can enjoy music with calm clarity.
In 5 words: Smooth, transparent, delicate, refined and accurate.
TIMBRE is soft, nuanced and natural. Free of grain or artificiality, with high level of transparency.
TONALITY is a hint warm and liquid, cohesive and perfectly balanced.
SOUNDSTAGE do gain in wideness and deepness as if the HD PRO inject air in the sound and improve panoramic rendering.
IMAGING too is improved over more congested decoding of a lot of other DAC i try, it’s really how layers of sound flow naturally and never overshadow each other.
BASS extends fully and is flat. It’s not boosted in punch or rumble but has a flexible articulation. Separation is clear, and when sub-bass occur, it is highly transparent and smooth.
MIDS are wide and airy, they sound very open and natural. Vocal tends to sound more transparent and polished than with other DAC-AMP, so again, slightly liquid in timbre but never dull or lacking in detail.
TREBLE is delicate, balanced, with a touch of beautiful brilliance to it. It never sounds too forwards and will tend to make bright iem less aggressive.
PAIRING with smooth earphones like the Moondrop STARFIELD will expend the soundstage wide and dept but do not thicken timbre or give more authority to bass, so perhaps the result is a little too laid back, but for me, I tend to really enjoy it, especially if I use full amping potential which will give a more dynamic punch. The Final Audio E5000 became more liquid sounding and transparent, gaining in delicate details and vocal clarity, making this a good pairing. The Audiosense T800 is a marvelous paring and sound more balanced and airy, soundstage and imaging gaining in articulation and bass being less boomy and more controlled. Another great pairing is with DITA FEALTY wich can sound too bright with some DAP or DAC-AMP and ironically sound its best with a 40$ DAC-AMP, delivering same level of details with a smoother, more natural and balanced sound. Simply put, the HD PRO will pair better with bright or bassy iem that need to gain in balance and smoothness, as it soft definition edge and add transparency without taming attack, this tend to give a more musical and inoffensive sound as well as improving layering and tonal balance.
COMPARISONS
VS AUDIRECT BEAM (100$)
Sound difference is quite intense between those two, especially in tonal balance and attack, but in SOUNDSTAGE too which is notably wider and more spacious with the HD PRRO, making the BEAM sound overly congested and intimate in comparisons. BASS extends until 20hz with HD PRO while it feels it cut before that with the BEAM wich have a more aggressive boost in mid-bass, making it energic but not naturally extended. The whole sound is smoother and more relaxed with HD PRO, yet it’s more balanced and transparent too while we have some kind of W shape vivid treatment with the BEAM. MIDS is more present and vocal have wider rendering, while with the BEAM vocal feel compressed in the middle of bright bass and treble. TREBLE is delicate with smooth decay for the HD PRO while the BEAM has sharp vivid highs that feel overly forward. In terms of output impedance, the BEAM is rather high at 10ohm while the HD PRO is supposed to be lower than 1ohm, what I can confirm is that the BEAM unbalance the sound of very sensitive Audiosense T800 while the HD PRO is perfectly stable and flat. Harmonic distortion is lower to with HD PRO, making background free of any grain, unlike the BEAM.
All in all, the Tempotec Sonata HD PRO has a more neutral, transparent, natural sound with greater sense of wide presence, as well it is more powerful in amping, have a cleaner background and lower impedance than the pricier Audirect BEAM.
VS XDUOO XQ-25 (50$):
This time it’s a Bluetooth DAC-AMP with the same ES9118P DAC chip than Audirect BEAM. For this comparison, I use the XQ-25 as a USB-DAC. This time SOUNDSTAGE is similar, but again slightly wider and better layered with the HD PRO. The XQ-25 is more grainy in texture timbre and lacks the beautiful transparency of HD PRO, making it more prompt to distortion or congestion with busy tracks at high volume. With only 32ohm of output power, again, the BASS sound dryer and lack the sub-bass extension of HD PRO. The whole sound of XQ25 feels more energic, punchy and snappy than more relaxed and neutral HD PRO, for some warm iem, the result will be more lively with XQ25, while too aggressive with bright iem, this makes the PRO more versatile and predictable. MIDS has more emphasis with the HD PRO and airy transparency to it, with the XQ25 it feels shadowed by mid-bass and whole treble, vocal is more enjoyable and natural with the HD PRO. TREBLE is notably crisper and faster in attack with the XQ-25, but less balanced and overly brilliant sometimes. Tonal balance is more refined and mature with the HD PRO, timbre is fuller even if smoother and bass and mids have better extension and presence.
All in all, XQ-25 isn’t bad for its price and I still suggest it for people wanting ultra-affordable Bluetooth DAC-amp that deliver energic slightly analytical sound and plan to use it with easy to drive IEM. Still, HD PRO have a better tonal balance and more versatile musicality that while not being the most energic is fullfill with nuance that gently enrich an highly refined musicality.
VS IKKO ZERDA ITM03 (100$)
Using a higher-end cirrus CS43198 DAC, the ZERDA sound quite different than HD PRO. SOUNDSTAGE is not as wide and airy, but IMAGING is more edgy and sharp. The overall sound is less flat with ZERDA, which has thicker bass and less transparent sound. Timbre is more textured with Zerda but less natural too. MIDS are slightly more recessed due to bass boost so it does not sound as open as HD PRO. Treble is more forwards and dig more details with Zerda, but as well it feels less balanced and peaky. It looks like output impedance is higher too because sensitive IEM doesn’t do well with the Zerda as it will make distort my Audiosense T800 while the HD PRO doesn’t.
All in all, Zerda is overpriced compared to more refined HD PRO performance.
CONCLUSION
Being able to have this type of well-articulated, tonally flat and lively sound at such a low price wasn’t imaginable some years ago. The Tempotec Sonata HD PRO really push the bar higher in term of portable DAC-AMP value and is without a doubt the best one you can get at this budget-friendly price.
Free of any distortion, black in the background, relatively high power output, low in impedance and high in signal-to-noise ratio, the HD PRO surpass by far my expectation and is a supreme recommendation from me.
( For more honest reviews, go to my official website HERE )
cqtek
Is somenthing like this:
https://es.aliexpress.com/item/32817162162.html
https://es.aliexpress.com/item/32817162162.html
JRodz
That simple? I didn't spect that. Thanks man 
cqtek
Of course, it's the way to activate the output, by adding an infinite impedance...
Introduction
Recently, Tempotec has released the PRO version of its Sonata HD model. It mounts the CS43131 chip. It is a small aluminium box, which, on one side has a micro-USB connector and on the other, the 3.5mm headphone output. It also has integrated volume keys. Using the different cables, which come with the product, it can be used, both for PC/MAC, Android or Apple mobile phones. Of course, it already has the ability to play DSD natively, up to DSD256 and a resolution of 32bits/384 kHz. Throughout the review, I will delve into the rest of the issues, besides, of course, talking about the sound of the device.
Disclaimer
I want to thank Tempotec, for offering me this device, in exchange for my humble opinion of it.
Specifications
Packaging, Content, Construction and Design
The Pro version, comes in a very similar box to the previous model, but with a larger size, specifically 120x89x26mm. The screen printing on the box is in a more intense black. On the upper side, the model and the brand logo are shown. On the back, the brand, model, brand information and a bar code, in white. The box is also sealed with two circular and transparent stickers. Inside, there is a metal box with the model name and brand logo in black letters. On this occasion, the packaging is somewhat more complex. After lifting the lid, you can see a black cardboard, just like the packaging. Attached to it, on its back, there is a black foam. Once removed, you can see the dongle, a female USB adapter type C to USB male type A and another adapter, with cable, micro USB male type B to type C male. This cable is very similar to the Sonata HD, with metal connectors and, this time, with a thicker cable, also with 4 strands. Its total size is 95mm. In the unit supplied for this review, the cable for Apple devices did not come.
The dongle is all metal and black. On its upper side, at the bottom, you can read the mark, in white letters. In the middle, there are the plus and minus buttons, they are made of semi-translucent plastic, red in color, but they do not light up. On the back, at the bottom, it is written "DSD" in white letters. The micro USB type B female connector is on the lower side, while the 3.5mm headphone output is on the upper side. The dimensions of the dongle are 48x17x8.5mm. The construction is simple and correct. It consists of two parts: a rectangular parallelepiped, whose edges are bevelled, and a cover, located on the back side. The set is solid, light and very practical.
Connectivity
The Pro version does not have different firmwares as the old version and can only be used for music, once it is connected to the mobile, as it is not compatible with the microphone. The driver used for PC, is the same as for the non-Pro version. However, it is worth mentioning that this version reaches a resolution of 32bits/384 kHz.
The device can be used, without problems, with the Tempotec V1/ V1-A DAP.
Measures
The power of the Pro version is higher and its output impedance is still lower than 1Ω.
The frequency response is completely flat, from 10Hz to 40kHz.
A special feature of the Pro version is that it adapts the voltage to the output impedance. It is clear that with low impedances, for example, from 16Ω, the volume is much lower. In addition, the dongle does not work if there is no jack inserted in its audio output. This way, it neither consumes battery power nor is recognized by the PC as a USB device. Once a headset is connected, it works. In case you want to get the 2V, for headphones lower than 100Ω, my advice is to connect first, a 3.5mm male to 3.5mm female cable. This way, the dongle is activated by having a plug connected and, in addition, when detecting a high impedance, it will be configured in high gain mode. Then, any earphone can be connected and we will always have the maximum power.
The volume, can be configured from the dongle and from the mobile or PC. It is important to point out that the dongle remembers the internal volume, which must be taken into account so as not to damage the headphones when starting to play, if it is configured at maximum.
Sound
The HD Pro version, for entry, offers a softer sound, but with more power and depth. The profile is very similar to the old version, but the quality is revealed in the better technicalities and resolution capabilities of this new Pro version. From the base, the sound is not so direct, its edges are smoother, there is more space, silence and refinement in the reproduction. The notes are played much more quietly, aware that they have a wider range and greater depth, so that they can be extended. The Pro version, still retains a good spoonful of immediacy, freshness and punch, but its sound is more dynamic and mature, embracing more space and reaching more remote confines and tiny nuances.
The lower zone is deeper and more spacious than its predecessor, managing to extend into the sub-bass zone, in a more natural and realistic way, forming sound planes in a more orderly and coherent way, without suffering from colouring in the lower medium. The definition and the descriptive capacity, in the low zone, also feels increased, more mature and relaxed, with greater resolution and air.
The central zone continues to present that colder aspect, with greater emphasis on the upper mids, which gives it greater clarity, but which, in turn, presents less warmth and a central zone with less body and density. The feeling of tension is no longer as high as in the old model, but the sound is still vivid and energetic in this section. The analysis capacity is improved and the sensation of dynamics is appreciated at first sight. But the perception of a faint thinness in the voices and instruments still lingers.
Another step forward, compared to the HD version, is the treatment of the high zone: the higher resolution and dynamics, produces more effective, refined, defined and less abrupt trebles, more adapted to a harmonious and higher quality sound, showing off the "Pro" surname. In this sense, the HD Pro dongle proves to be much more reliable with the sound capabilities of each earphone, respecting its profile, based on the neutrality of the amplifier and its very low output impedance.
In the same way, the ability to recreate the scene is closely linked to the virtues of each headphone, without minimizing its qualities, managing to offer a remarkably open sound for a device of its price. The level of separation, amount of detail and richness of nuance is surprising and scales the better the headphone is connected.
Conclusion
From Sonata HD to Sonata HD Pro, there is a two-year difference and a fully justified price increase. The Pro version, with its CS43131 DAC, widely used in this type of devices, has undoubted specifications, in addition to 2V output, automatic gain control, depending on the connected load and integrated volume control. All this contributes to a minimum energy consumption. In addition, its automatic shutdown in the absence of connector, minimizes the waste of mobile battery. If you add to this a simple design, but very suitable and light, in addition to an excellent sound for its price, the Pro version becomes an interesting option, to buy, almost forced, for all those who look for a device like this, at the best price.
Headphones Used During Analysis
Ratings
https://es.aliexpress.com/item/4000328408705.html
You can read the full review in Spanish here:
https://hiendportable.com/2020/02/01/tempotec-sonata-hd-pro-review/
Recently, Tempotec has released the PRO version of its Sonata HD model. It mounts the CS43131 chip. It is a small aluminium box, which, on one side has a micro-USB connector and on the other, the 3.5mm headphone output. It also has integrated volume keys. Using the different cables, which come with the product, it can be used, both for PC/MAC, Android or Apple mobile phones. Of course, it already has the ability to play DSD natively, up to DSD256 and a resolution of 32bits/384 kHz. Throughout the review, I will delve into the rest of the issues, besides, of course, talking about the sound of the device.
Disclaimer
I want to thank Tempotec, for offering me this device, in exchange for my humble opinion of it.
Specifications
Packaging, Content, Construction and Design
The Pro version, comes in a very similar box to the previous model, but with a larger size, specifically 120x89x26mm. The screen printing on the box is in a more intense black. On the upper side, the model and the brand logo are shown. On the back, the brand, model, brand information and a bar code, in white. The box is also sealed with two circular and transparent stickers. Inside, there is a metal box with the model name and brand logo in black letters. On this occasion, the packaging is somewhat more complex. After lifting the lid, you can see a black cardboard, just like the packaging. Attached to it, on its back, there is a black foam. Once removed, you can see the dongle, a female USB adapter type C to USB male type A and another adapter, with cable, micro USB male type B to type C male. This cable is very similar to the Sonata HD, with metal connectors and, this time, with a thicker cable, also with 4 strands. Its total size is 95mm. In the unit supplied for this review, the cable for Apple devices did not come.
The dongle is all metal and black. On its upper side, at the bottom, you can read the mark, in white letters. In the middle, there are the plus and minus buttons, they are made of semi-translucent plastic, red in color, but they do not light up. On the back, at the bottom, it is written "DSD" in white letters. The micro USB type B female connector is on the lower side, while the 3.5mm headphone output is on the upper side. The dimensions of the dongle are 48x17x8.5mm. The construction is simple and correct. It consists of two parts: a rectangular parallelepiped, whose edges are bevelled, and a cover, located on the back side. The set is solid, light and very practical.
Connectivity
The Pro version does not have different firmwares as the old version and can only be used for music, once it is connected to the mobile, as it is not compatible with the microphone. The driver used for PC, is the same as for the non-Pro version. However, it is worth mentioning that this version reaches a resolution of 32bits/384 kHz.
The device can be used, without problems, with the Tempotec V1/ V1-A DAP.
Measures
| Voltage (V) | Power (mW) | |
| No-Load | 2.01 | |
| 32 Ω | 1.853 | 110 |
| 100 Ω | 1.992 | 39.68 |
| 240 Ω | 2.00 | 11.76 |
| 320 Ω | 2.00 | 12.5 |
| 620 Ω | 2.00 | 6.45 |
The power of the Pro version is higher and its output impedance is still lower than 1Ω.
The frequency response is completely flat, from 10Hz to 40kHz.
A special feature of the Pro version is that it adapts the voltage to the output impedance. It is clear that with low impedances, for example, from 16Ω, the volume is much lower. In addition, the dongle does not work if there is no jack inserted in its audio output. This way, it neither consumes battery power nor is recognized by the PC as a USB device. Once a headset is connected, it works. In case you want to get the 2V, for headphones lower than 100Ω, my advice is to connect first, a 3.5mm male to 3.5mm female cable. This way, the dongle is activated by having a plug connected and, in addition, when detecting a high impedance, it will be configured in high gain mode. Then, any earphone can be connected and we will always have the maximum power.
The volume, can be configured from the dongle and from the mobile or PC. It is important to point out that the dongle remembers the internal volume, which must be taken into account so as not to damage the headphones when starting to play, if it is configured at maximum.
Sound
The HD Pro version, for entry, offers a softer sound, but with more power and depth. The profile is very similar to the old version, but the quality is revealed in the better technicalities and resolution capabilities of this new Pro version. From the base, the sound is not so direct, its edges are smoother, there is more space, silence and refinement in the reproduction. The notes are played much more quietly, aware that they have a wider range and greater depth, so that they can be extended. The Pro version, still retains a good spoonful of immediacy, freshness and punch, but its sound is more dynamic and mature, embracing more space and reaching more remote confines and tiny nuances.
The lower zone is deeper and more spacious than its predecessor, managing to extend into the sub-bass zone, in a more natural and realistic way, forming sound planes in a more orderly and coherent way, without suffering from colouring in the lower medium. The definition and the descriptive capacity, in the low zone, also feels increased, more mature and relaxed, with greater resolution and air.
The central zone continues to present that colder aspect, with greater emphasis on the upper mids, which gives it greater clarity, but which, in turn, presents less warmth and a central zone with less body and density. The feeling of tension is no longer as high as in the old model, but the sound is still vivid and energetic in this section. The analysis capacity is improved and the sensation of dynamics is appreciated at first sight. But the perception of a faint thinness in the voices and instruments still lingers.
Another step forward, compared to the HD version, is the treatment of the high zone: the higher resolution and dynamics, produces more effective, refined, defined and less abrupt trebles, more adapted to a harmonious and higher quality sound, showing off the "Pro" surname. In this sense, the HD Pro dongle proves to be much more reliable with the sound capabilities of each earphone, respecting its profile, based on the neutrality of the amplifier and its very low output impedance.
In the same way, the ability to recreate the scene is closely linked to the virtues of each headphone, without minimizing its qualities, managing to offer a remarkably open sound for a device of its price. The level of separation, amount of detail and richness of nuance is surprising and scales the better the headphone is connected.
Conclusion
From Sonata HD to Sonata HD Pro, there is a two-year difference and a fully justified price increase. The Pro version, with its CS43131 DAC, widely used in this type of devices, has undoubted specifications, in addition to 2V output, automatic gain control, depending on the connected load and integrated volume control. All this contributes to a minimum energy consumption. In addition, its automatic shutdown in the absence of connector, minimizes the waste of mobile battery. If you add to this a simple design, but very suitable and light, in addition to an excellent sound for its price, the Pro version becomes an interesting option, to buy, almost forced, for all those who look for a device like this, at the best price.
Headphones Used During Analysis
- Ikko OH10
- Soundmagic HP150
- Dunu DM-480
- NS Audio NS5 MKII Extra Bass
- Magaosi V3
- Shozy Neo BG
- OurArt QJ21
- Smabat M1
- BGVP ArtMagic DH3
- TFZ My Love III
Ratings
- Construction and Design: 87
- Accessories: 75
- Connectivity: 90
- Sound: 86
- Quality/Price: 88
https://es.aliexpress.com/item/4000328408705.html
You can read the full review in Spanish here:
https://hiendportable.com/2020/02/01/tempotec-sonata-hd-pro-review/
Zeka
Can Sonata HD Pro be used as a standalone DAC connected to an integrated amplifier?
cqtek
I don't think it plays MQA.
And I also don't think it can be used simply as a DAC, as it has no line output.
And I also don't think it can be used simply as a DAC, as it has no line output.
Theri0n
It doesn't support MQA.
I use it with Fiio E11 when connected to PC - no significant distortions of sound found. So it basically can be used with stand-alone amplifier.
I use it with Fiio E11 when connected to PC - no significant distortions of sound found. So it basically can be used with stand-alone amplifier.
