Hum in Parasound HCA 800 II


Picked up a used amp for my small home studio and it seems fine except for a very slight hum through the headphones.
I just set it up last night and have not tried it with speakers yet.

It has a two prong power cord and I have tried different outlets. I have disconnected the RCA ins and unplugged all devices near it. Still get the very slight hum. You don't notice it when you are playing music.

The hum does not increase or decrease in volume when I increase or decrease the level controls on the front of the amp.

Any ideas are welcome. I will see if the hum is present when I pick up some speaker wire this afternoon and connect the speakers.

Thanks for your help.

--Tony
lkdog

Showing 1 response by tacs

This is a power amp, right? And it has a headphone jack?
No surprise there is a hum thru headphones, which are very sensitive.
tom