Fosi Audio DS1 USB C DAC Headphone Amp DSD512 ES9038Q2M HiFi Mini Audio Adapter
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Headphone Amps
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About Fosi Audio DS1 USB C DAC Headphone Amp DSD512 ES9038Q2M HiFi Mini Audio Adapter
Overall Feedback:
91% positive
73% liked the long battery life
I swapped out my stock HD650 cable with a Youkamoo balanced 4.4 and it fixed the heat and battery draw issue.
91% liked the solid build quality
The headphone-amp has excellent build quality with satisfying metal construction.
I was pleasantly surprised by the device's build quality. It was smaller than expected but had a satisfying weight.
The build quality is excellent and the price is just right.
The build quality feels great and it is solid in my hand.
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83% appreciated the seamless connectivity
I can connect large headphones to my cell phone with this device and get more output power to drive them.
I use the DS1 to play music from my iPhone 13 maxpro into my home stereo. The sound is powerful and crystal clear. I used specific cables to connect the devices.
It pairs well with my Hifiman He-4xx and provides ample amplification for a solid sound that was previously lacking.
I can drive headphones great and handle super high res bitrates with Fosi.
72% found the noise floor and hum to be minimal
After using it for a week, I found the audio quality and volume to be quite good with no audible noise or distortion.
96% appreciated the portable design
I found the build quality surprisingly good and the device smaller than anticipated but with a satisfying weight, indicating its portability.
87% appreciated the ample power and gain
The headphone-amp has good power and clarity with no buzzing sound.
This product can drive even some very demanding audio setups and is amazing.
The portable DAC is very powerful and drives my hard to drive Hifiman headphones well.
I'm guessing that this headphone amp provides equal or better quality sound than other amp/dacs like the DragonFly Cobalt, which uses the same ESS DAC but appears to have a more powerful amp output.
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91% praised for its crystal-clear sound
I was pleasantly surprised with the unit's sound quality. It has a musical sound with good bass reach and midrange quality.
I was very impressed with the amazing sound quality of the amp.
The audio quality is definitely an upgrade from onboard audio and sounds very good.
The DAC improves the output quality of my iPad to the Mac M1 level and increases sound volume output without sacrificing audio quality.
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