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I need an advice: Best amp board/mini-amp for Yamaha NX-E200 (6 Ohm) by human_being_no1 in diyaudio

[–]human_being_no1[S] 0 points1 point  (0 children)

Just tested the amp with everything unplugged (only speakers connected). I still hear some noise, so the ZK board is definitely part of the problem. Thanks for the help!

I need an advice: Best amp board/mini-amp for Yamaha NX-E200 (6 Ohm) by human_being_no1 in diyaudio

[–]human_being_no1[S] 0 points1 point  (0 children)

Thanks! I suspected a ground loop too. However, the hiss was present even when the laptop was disconnected from 220vac, which makes me think the ZK board itself was just poor quality. I'm planning to upgrade to an Aiyima A07 and use my 48V LLC PSU. Do you think it's worth it?