I have 2 Parasound amps which power my back four speakers in my HT; they are each 125 x 2 ; the side speakers hum appreciably; the back ones hum alot less, but still present; I have 500$ power cords in each; a recently purchased noise harvester from PsAudio. Is this the famous "ground Loop" problem or is this a problem with the amp ?? Thanks. JCB PS My Parasound 200 x 3 amp (fronts) does not hum at all.
I assume you have the HCA-1000? There is a ground lift switch on the back. Flip this switch and you have just done the same thing as using a cheater plug.
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