Fosi AudioK5 Pro Gaming DAC Headphone Amplifier Mini Hi-Fi Stereo Digital-to-Analog Audio Converter USB Type C/Optical/Coaxial to RCA/3.5MM AUX for PS5/PC/MAC/Computer

This thing is amazing. It's a DAC/AMP all in one. It's sleek, feels very well made, and the audio coming out of it is amazing for my new FiiO FT1's I'm using. I've paired the FiiO FT1's with a ModMic 3.5mm version.I thought the headphones at first were really, really nice. Massive upgrade in sound quality from the Steel Series Arctis 7 Wireless. But I was experiencing a volume limit with my mobo powering the FT1's. When I plugged in the amp for the first time --- which is SUPER easy if your PC has a USB-C port. All power/audio goes through the USB-C port, so from the backside, all you need to plug in is the Fosi Audio DAC/AMP USB-C into amp, then into your PC. No drivers are needed, it's literally plug and play.Man-oh-man, when I powered it on for the first time it was like experiencing nothing I've ever experienced in life before. It's made me an audiophile of sorts now. I can never go back. The sound quality paired with the FiiO FT1's is incredible. The fact you can change bass/treb on the fly is amazing. I would've loved one more knob for mids, but honestly, the knobs are very well built. The Bass/Treb have a detent in the middle, so if you are in low light, it's very easy to find where you are on the EQ.I was able to route the USB-C cord around my PC, so now this little Fosi K5 pro sits neatly right next to me, within reaching distance, and the entire experience is fluid.If you have some true HiFi headphones, and you are powering them via your mobo, I get it, you're getting a great experience. For $80 this thing transforms the experience. Video games feel like movies. You can power them to higher volumes, you can tweak Bass/Treble on the fly, and this thing is built solidly.When I plugged it in, I raved to my friend who has Beredynamics 770's.... he caved and bought a Fosi Audio K5 as well. He thanked me for weeks. The audio coming out of this thing into some quality headphones is nothing like I've ever experienced. Everything else -- car audio, audio via my laptop to some crap headphones --- none of it compares. It will change your listening experience 1000%.Would recommend this to anyone.

Absolutely fantastic. Clean sound, good power, fully integrateable into a stack thanks to the rca, usb c, coa, and optic ports on the back. Even as a standalone unit, it's wonderful. Using it with the Hifiman Sundaras rn, the bass knob makes them punchy, but it's very very clean. Not bloated at all. The treble knob is quite subtle, by comparison, but definitely works. The build is awesome. Quite frankly, nothing is better than this for under $100. Audiophile seal of approval.

Any of these are going to greatly improve the sound over plugging your headphones directly into the mini-jack on a computer.Listening was done with a few different headphones but mostly with beyerdynamic DT 700 PRO X Closed-Back Studio Headphones. Music source was a laptop connected to the DAC/Headphone Amp via USB. If an external power supply was included, I used that. If not, power came via USB.I've kept notes on my impressions brief and included comparisons amongst the DAC/Amp's in this list. They are listed below in my order of preference with my favorites at the top. If you want flowery vocabulary I'm sure in depth reviews are available out there on the web.Headphones make the greatest difference in sound - spend more on them, if necessary. The DAC/Amp is secondary but does add its own flavor to the music.---iFi Zen DAC V2 | Desktop Digital Analog Converter(Listening only with "TRUEBASS" off.)Very good.Slightly better than the FiiO K7. Better vocal clarity and slightly fuller bass.I ended up comparing this with the FX-Audio DAC-X6 head to head, which continued to surprise me as I put it up against significantly more expensive competitors. Across several hours and many pieces of music, I prefer the iFi... but the difference is infinitesimal. Possibly the iFi has a little more punch to the bass? Maybe a bit more space ans separation? If you're working to a budget, get the FX-Audio and put the extra cash towards better headphones.FX-Audio DAC-X6 Mini HiFi 2.0 Digital Audio Decoder DACThis thing is good. Surprisingly good. I ended up putting it head-to-head with amps costing three times its price.Slightly warmer sound, with slightly less detail in the vocals than the iFi Zen Air, but more space in the music, and more enjoyable to listen to. Slightly better clarity than the Topping.FiiO K7 Full Balanced HiFi DAC Headphone AmplifierThis is indeed better than the K5 version. Vocals are more lifelike. And a particular emphasis on the mid-treble heard in the K5 is absent. There is more separation between the instruments.Very close call with the iFi V2, with my preference going to the iFi for better vocal clarity and slightly fuller bass.iFi Zen Air DACNot quite as good as the V2, but close. Closer than the FiiO K5 is to the K7. There is, again, a comparative emphasis in mid-treble and the vocals get a bit lost. The sound is slightly thin compared to rivals at this price point.FiiO K5 Pro Headphone Amps Portable Desktop DAC and AmplifierNot quite as good as the K7, but at half the price one cannot really complain. Vocals are not quite as lifelike and there is more mid-treble - but not in a good way.Topping DX1 Mini Stereo DAC Headphone Amplifier ComboVery good little unit. Bass is slightly overemphasized.Fosi Audio K5 Pro Gaming DAC Headphone AmplifierI thought this unit was DOA. Turns out that you must long press the volume knob to turn it on. (Short press to select input.)Not terrible, but not as musical as the others in this test. Also, the only one with bass and treble knobs. And only a mini-jack - no 1/4" jack.Pro-Ject Head Box S2 DigitalThis DAC/Amp had an issue that makes it unlistenable. The sound is very nice... but... there's some faint static. Only in the music, not in silence. A faint crackling.... Can't have that.

Very early impressions of this product as I've only had it for a day now, but this works flawlessly on my Windows machine connected via USB-C. No driver install, no crappy software to manage. Easy to configure in sound settings.Build of the device is solid, nice lil' metal box that blends in nicely to a desk. Bass and Treble adjustment knobs have a click point in the "center" as a reference point. The only thing that bothers me about using the knobs is center looks a little bit off, but it's such a small detail in the grand scheme of things.I bought the Fosi because my Creative SoundBlaster X4 crapped out on me, started getting interference and small inconsistencies of my audio on USB-C after about a year of ownership. I was happy to delete the Creative software once replacing with the Fosi! VModa Boom pro microphone comes through loud and clear, Phillips SHP 9500s come through loud and clear.

This Fosi DAC is just what I needed for the limited space on my desk. I have tested both the USB input and Opcital input and both sound amazing and work without issue. The sound output is very good and has a lot of adjustment for volume, bass, and treble. Overall I do recommend this product!