DAC USB Hum


I’ve had my Innuos Zen Mk3/MHDT Orchid DAC setup in my system for 30 days or so and I’m very satisfied with this combo. The Zen is USB only. Just noticed today that I’m getting a slight hum from the DAC and it goes away when unplugged. No hum through my speakers when connected just the DAC. Any help with eliminating the hum is appreciated.

cetla416

Op also may want to look at the quality of the USB Cable being used. I have has great results with DH Labs as well as Supra Excalibur USB cables. Supra is a bit less expensive and would look into them. https://www.madisoundspeakerstore.com/computer/
https://silversonic.com/products/

 

@fuzztone it can also be a shielding issue in either USB or LAN cable.

Hum is a grounding issue.

This is what gives USB a bad reputatiom among those who spend much money to avoid it at all cost, poor implementation in less espensive DACs.  My Innuos Zenith MK3 is designed around USB and performs great with Chord DACs and MScaler.  

There are a lot of popluar Chinese DACs now that aren't all wine and roses.

Jerry

@jacobsdad2000

Of course sir, maybe I should have mentioned it.

Easily observable by moving the box and cables around.

I guess I assumed that maneuver is much easier than posting here