TEMPOTEC Amps Headphone Amplifier Sonata HD PRO HiFi Decoding for Android Phone/Windows USB Type C to 3.5MM Adapter DAC Portable Audio Out for Android/PC

Beginner audiophile but this was definitely one of the most hyped units I've read about. And the best part it it lived up to all of it.Offers a spectacular difference over default phone sound quality.Pushes a lot of volume - I have all of my headphones at 50% or less.It's a bit expensive but you can connect it to your phone or computer.A definite purchase for anyone looking to get superb sound quality in this compact form.

I ordered this and a cheap converter. TBH, difference is quite small. It's there, but not nearly prominent enough to justify 10x price of a normal adaptor. Plus this thing has really flimsy build quality. The DAC has a micro USB input so the type C is first converted to microUSB. And this part is really sensitive. Forget about using it during daily commute. Even a small disturbance is enough to make the DAC stop working.

This has been described by many as great. I also expected a lot more. I received it today.All my illusions were gone at once! What I don’t mean is- why so many people have said so much about it! Most importantly what I don’t like is the low sound intensity! Loudness Not Enough for me.. The sound quality is just ok. not WOW (as many say)! NO WIDE SOUND STAGE! This is most Important for me & for Watching Movies also. I have more fiio A 1 volume than this. As well as bass. And one more thing.. Headphone Jack is Loose. Not fit properly! This is not an option for those who want more sound intensity. I returned it immediately! VERY DISAPPOINTED!!...

I was initially happy with the quality of the product, despite the hypersensitivity of the port which would get disconnected with the slightest movements. However, just a week after I recieved it, it stopped working. I have written to the seller twice requesting a replacement and have got no response.

Set electronically note properly working.please replace it.that the sound problem.

Not working on an oppo f15 pro n no lightening cable to drive it on iPhone sorry amazone stop such to preserve Ur trust in us

Too expensive

This won't work on Tidal. There's no audio when you switch to exclusive mode.

I really like this dac/amp. It matches up really well with my AKG K371 headphones. The sound quality is excellent. It has enough power (60 mw @ 32 ohms) to get the K371's plenty loud. The K371's are rated at 32 ohms and a sensitivity of 114db. The AKG K371's have a max input rating of 100mw, so if I could have one wish it would be that the Sonata HD Pro was double its output rating. It would max out the the potential of the K371s and I wouldn't have to run the Sonata at its current max level for sufficient volume. I've been running it at its max level and the unit remains cool, not even warm to the touch. Obviously headphones with higher impedence and a lower sensitivity rating won't get as loud but the sound quality should still remain. Only had this for a few days so can't comment on durability but I am loving it so far. A lot of bang for the buck.

Supposedly very similar to the Hidiz S8 that garnered absolutely RAVE reviews on AudioScienceReview. It looks similar and uses the same DAC chip, though the implementation may be different. Is it worth the cost at half the price of the S8?TL;DR - Yes. It's priced the same as the Meizu Hifi Pro, which is a dongle DAC, and sounds just as good. Plus, it's got hardware volume buttons. If you were looking for a better, more durable DAC/Amp than what came with your phone, this is definitely worth a shot.Packaging, Features, & Build - Comes in a simple cardboard liner wrapped around a small tin. Inside, the DAC/Amp, cables, manual, and a tiny "HiRes Audio" sticker are packed in custom cut foam. Mine looked like someone had hastily cut the foam around the product and then hastily cut it to fit the tin. Didn't look super great, but eh, $40?Micro USB input, 3.5mm headphone out. Comes with a "+" and a "-" button for volume controls. Appears to be a once piece metal enclosure around the PCB. Doesn't work with inline mics however. Most dongle DACs, including the Meizu Hifi Pro and Apple A2049 USB-C Dongle can, but that's a relatively minor gripe. Also comes with a small, multi-strand braided USB-C to Micro USB cable. Mine didn't work. Thankfully, I had one left over that I'd purchased for a previous product.Sound - Good? My ears aren't a universal measurement rig, and after a certain point, I find it incredibly difficult to differentiate between DACs with even the best headphones I own. It doesn't really sound noticeably different than my MHP, not with Andromeda S, Blessing 2, or TR-X00 Ebony. I don't know the actual measurements but it had no trouble driving any IEMs I hooked up, and drove high-efficiency headphones perfectly acceptably. I honestly have zero complaints with the sound.I've used it with my Asus GA502DU Laptop, and my LG V60 Smartphone. It worked flawlessly (once I swapped the cable) both times, and the hardware buttons NOT triggering the digital volume control of the OS. It also worked with an older Dell Chromebook running Audiophile Linux.Conclusions - Okay, so this is a relatively short review for me, and it should be. It's a product that is, at worst, a clone of another product that is known to measure well and sound great. At best, it's a similar product with a different implementation and so should sound/measure differently than the S8. However, I can't hear anything strange, but as I said above, my ears aren't an APx555. It fulfilled all tests I put it through. I found it to be an entirely competent portable DAC/Amp with extreme emphasis on portability.If you're not about that portable-stack-life, or you're just running IEMs and efficient headphones, this is a worthy driver of such headgear.Disclaimer - Perception of sound is subjective, my ears aren't a universal measurement rig. No one has paid for, or otherwise attempted to influence the content of this review. Thanks for reading and feel free to leave any questions or comments below.

I would not describe myself as an audiophile but I appreciate good sound and prefer my big wired headphones (Sony MDR-V6) over wireless headphones. Even without the added EQ/processing tweaks, the sound quality directly from the DAC was much better. With some additional EQ adjustments, the listening experience was phenomenal. It is almost funny to realize that part of why I felt tired after listening to music for a short while was because the compression removed barely noticeable -but important- detail.Doing a brief side-by-side comparing the audio output from my M1 Macbook's headphone compared to the Sonata, there is just a wider 'stage' and a noticeably richer base.My biggest criticisms are similar to ones others have mentioned: mainly that the USB-C to micro cable feels flimsy- though presumably this can be replaced with another USB-C to Micro cable if needed. I would have also liked if that cable was a bit longer... at the moment it's just long enough to be annoying (lol). I have no complaints with the main unit. Having its own in-line volume is very helpful for getting just the right amount of output for your headphone or line-out needs. Battery drain from the phone seems negligable/reasonable and the unit itself doesn't get too warm/hot.

Sound quality is OK from the DAC when itneorks, but fails to register as an output on many devices without plugging in/out multiple times (even when following directions). Fails to maintain a consistent connection, and distorts at higher volumes.