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Help I got a big time Hum in my system

I just put my HT system together. It consists of Aerial fronts Aerial rears and Aerial center and Paradigm 15 sub...power is Classe ca300 for the fronts Parasound 2203a( 3 channel) for the rears and center.The pre/pro is an Aragon
Soundstage....Cables are mostly Straightwire.
With that aside I am getting a loud hum out of all channels in all modes....it is always present even when the processor is off. It will get louder when I turn the processor up to about 60 per cent....but in lower volume settings it seems to bee constant. I do not have any power conditioners in the system at this time.....The outlets are suppose to be dedicated circuits.....When I have just the amps on and take off the interconnects to the processor it stops.....Is this a problem with the way the electrician wired my room......I need help bad Please!!!! Thanks
tmoore

Showing 1 response by stehno

stehno
1,453 posts
 
Try disconnecting the tv-cable and unplugging the tv. If this eliminate your hum, then you can fix this cable ground loop hum several ways without costing you any money.

Either ensure that all grounds to all components are using the same ground and/or circuit.

Or disconnect the ground (for safety sake many will discourage doing this) at all outlets for your tv and audio components.
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