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Hum and the PS Audio P300

I've had a hum in my system for several years. Its no mystery. Its caused by the different ground between my stereo (house ground) and the grounding of my Cable TV's (AT&T Broadband)ground. I've tried spliters and the little box with cable connectors on each end and a dedicated ground. None of that works. I upgraded from a ARC LS2B to a Sonic Frontiers Line 3 and the hum dropped 10db so I've lived with it. The question is I'm considering the purchase of a PS Audio P300 power plant for my CD and preamp's power. Can I expect the hum to go away or get worse? I can terminate the hum totally if I either disconnect the TV cable or isolate the DVD player which is connected to the TV from the preamp.
keis

Showing 1 response by sean

sean
6,231 posts
 
If your cable TV ground is near the electrical service entry ground, tie them together. This should put them at the same potential and minimize any hum. I don't see a problem with doing this, but it might be good to check with a licensed electrician.

"OH GLEN, where are you ???" : ) Sean
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