AIYIMA DAC-A2 Headphone Amplifier DAC with Bass Treble Controls PC-USB/Optical/Coaxial Inputs, RCA/3.5mm Headphone Ouput Digital to Analog Desktop Audio Converter DC 5V 24Bit 192kHzClimatePartner certified

Edit (4/14/25): The seller saw my review and decided to work with me to see if we could fix the high pitch I was hearing. While we couldn't in the end, it does seem to be a rare issue and they offered me a full refund to purchase a new one. Changing from 3->5 stars because of the exceptional customer service.-----I bought this DAC as an affordable option for my office setup, and overall, it performs well. The build quality is solid, with responsive dials and more than enough power for my needs. Setup was straightforward, and the sound is clear, especially at lower volumes.However, I did notice a high-pitched whistle when using the USB input from my desktop. Even turning the treble all the way down didn’t eliminate the noise entirely, so I had to lower the volume to mask it. While this issue is disappointing, it doesn’t detract too much from its usability for casual listening.If you’re looking for a budget DAC and can work around minor noise issues, this could still be a worthwhile choice.

And excellent value. I was using a 3.5mm to RCA splitter to feed and amp and a pair of bookshelf speakers I wanted to use to replace my B&W MM1's that finally bit the dust. I wanted a small preamp that would take USB audio from my computer and feed it to my amp with volume and tone controls. This does all of that, powers off of USB-C 5v and is pretty quite when no sound is present. Will I confuse it for my Schitt Audio preamp? No. But it is perfect for what I am doing with it. Nice clean sound in small footprint (4" wide x 3.5" deep x1.25" tall" that my computer recognized with no driver needed. I big improvement over the headphone splitter cable and no preamp. My $.02

It's pretty good overall. Sounds fine, good control over the sound, input options etc. However, it does sometimes make a scratchy sound when moving the dial, particularly at the lower levels, and the left/right output is uneven at the lowest levels.Still pretty decent. Probably good as a preamp for your PC or as your DAC.

Great sound improvement. Losing the computer hiss/noise is a great step forward. Add to that more “room” in the sound between voice/instruments/etc. Soundstage expands and becomes more specific. Great investment!

I was impressed. Worked well

On the Nintendo Switch, you can adjust the volume from the controller menu, but only if you use USB audio. It doesn't work if you use the headphone jack.I had been playing videogames with my Logitec G gaming headset plugged directly into my Nintendo switch, or sometimes, my Nvidia gaming monitor. The Logitec headset comes with its own USB adapter, and I used that sometimes, but I needed it for my laptop, so I went shopping for a cheap USB-to-headphone adapter. I didn't think sound quality was a factor, because it's a gaming headset not music headphones, and it's a videogame, not music. I just wanted to be able to adjust the volume from the controller. I bought this one because it was about the cheapest one with USB input (needed for the Switch) but it also has optical and coaxial inputs.I have say I'm pretty surprised. The output is perfectly quiet with no hiss or static, and the sound is WAY better, even better than using the original Logitec USB adapter. You can hear every footstep in Zelda, every drop of ink in Splatoon. It's a pretty big difference. You can seriously hear the little footsteps of the smallfry enemies.And the tone controls are more of a bonus than I thought, because gaming headsets often have unbalanced bass. I ended up turning up the bass a little bit just until certain bomb sounds got too boomy. And I cut back the treble a little bit to make it sound less bright and harsh at high volumes. Basically, I didn't expect to need the tone controls but I ended up being glad I have them because no matter what headset I get in the future I can probably benefit from a little tweak.I would say this is the ultimate example of "even a cheap headphone amp is probably better than no headphone amp". Maybe if you have a good soundcard already, this won't help, but it's cheap enough to try, and having the cool tone control knobs and volume knob is worth something too.

After about 7 or 8 months its detected by windows but it will not out put a sount even after a new usb cord

Used it for few years now and it's been reliable and enjoyable.