Low level noise from spkr when nothing is playing


I need your help finding out why I am getting low level noise from my center speaker, even when nothing is playing. When I put my ear up to my center speaker I can hear low level noise. My system is made up of the following components: Sherborn 7/125A 7 channel power amplifier, Krell HTS 5.1 Control Amplifier, Faroudja DVD/CD DV-1000 player, Front Martin Logan Source Speakers, Center Krell Resolution 4 speaker. These are connected with MAC Silver PB Speaker Cables and Ultrasilver XLR cables. What can I do to test where the problem is coming from? I do not have a line conditioner. Will that fix the problem?
gdush

Showing 1 response by akg_ca

I had the similar issue with my AV receiver, except that it suddenly developed in my LF speaker.I ignored it for a while, but within a short time more audio problems developed.

I ended upn shipping it back to the distributor for a warrnty repair - some of the circuits had been fried and new parts and circuit boards inserted as replacements.
Speculation is that a sudden power surge (repeated) caused the problems.

FWIW ....