Kruppy
Well-known member
Ground loops (I think)….I’m so depressed.
Potential Problem:
Over the past couple of months I noticed a slight hum coming from my right SL3 only. It’s louder when I have my amp on and my preamp off. As soon as the pre is turned on the hum volume is reduced to the point where it’s quite acceptable. Basically you have to be within about a foot of the panel to hear it. So I haven’t really bothered with it, but it may be contributing to the problem below.
Serious Problem:
Earlier this week I came across an extremely good deal on a Yamaha AV receiver to replace a failing Adcom GDD-1 Dolby Digital processor. I’m using the receiver’s pre –outs since I have separates already. My PS Audio PCA-2 preamp has a HT bypass (which input channel is user selectable). So I had everything hooked up, powered up all my cr@p, selected the bypass channel and Holy Bejesus there’s a 60+ dB hum coming from BOTH channels. Totally unacceptable! I started wantonly farting with the interconnects and coax cable connections with the hope of finding the needle in the hay stack, but no success. Unfortunately, I have a rat’s nest of cables, power cords and components to mess with and no time to do it.
Other than systematically eliminating every connection/component does anyone have any advice?
I was so looking forward to watching a movie with the kids tonight. Now I’m contemplating tearing the whole rig down. Sometimes this hobby can bite.
Potential Problem:
Over the past couple of months I noticed a slight hum coming from my right SL3 only. It’s louder when I have my amp on and my preamp off. As soon as the pre is turned on the hum volume is reduced to the point where it’s quite acceptable. Basically you have to be within about a foot of the panel to hear it. So I haven’t really bothered with it, but it may be contributing to the problem below.
Serious Problem:
Earlier this week I came across an extremely good deal on a Yamaha AV receiver to replace a failing Adcom GDD-1 Dolby Digital processor. I’m using the receiver’s pre –outs since I have separates already. My PS Audio PCA-2 preamp has a HT bypass (which input channel is user selectable). So I had everything hooked up, powered up all my cr@p, selected the bypass channel and Holy Bejesus there’s a 60+ dB hum coming from BOTH channels. Totally unacceptable! I started wantonly farting with the interconnects and coax cable connections with the hope of finding the needle in the hay stack, but no success. Unfortunately, I have a rat’s nest of cables, power cords and components to mess with and no time to do it.
Other than systematically eliminating every connection/component does anyone have any advice?
I was so looking forward to watching a movie with the kids tonight. Now I’m contemplating tearing the whole rig down. Sometimes this hobby can bite.
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