Product Link: https://fosiaudio.com/products/fosi-audio-ds1-headphone-amps-supports-dsd512-with-3-5mm-4-4mm-outputs?srsltid=AfmBOor25r9HqwWg8t8RAtRhY_bj-56vhVxvBB3LzQqkkQWRH2uCIzqJ

AudioGeeek Facebook Group:   https://www.facebook.com/groups/1144406473382089

Verdict: 4,8 stars out of 5

Pros:

Very solid built quality (Tank)

Great design contours

Great Volume buttons

Very Neutral Ess Dac Chip

Still analytical & technicalities even though neutral

Big soundstage

Powerful enough to drive 300 Ohm headphones

Great SNR- No noise on sensitive IEM’S

Awesome price vs performance

Cons:

None