Audio low

I'm trying to hook up my dynon audio (HS34) to my audio panel. Naturally the dynon has a single wire to send to the audio panel but the audio panel (8000B) has a high and low wire connection. What to do with the low connection?

Looks like Dynon is using airframe ground as their audio return. Not much choice but to use the single wire to one of the four unswitched input and leave the audio low pin un-terminated. This will work but you may have ground loop noise.

The good thing is that our un-switched inputs have a threshold that has to be met before audio will pass. It's set to stop most ground loop or other induced noises from getting through.

Hope this helps and thanks for trusting us with your audio!

Sincerely,
Mark Scheuer
PS Engineering

Thanks

Hopefully the noise will only be when the warnings go off!

Couldn't I just take the low to ground, or does it matter?

Audio Low

Tbone said:

Couldn't I just take the low to ground, or does it matter?

Click to expand...

You do not want to ground the audio low. It will then present to audio amplifier any and all ground loop noise.

Mark