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Hum issue - driving me more crazy

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Not sure if this should be here, Tech talk or Cables...

Audio Research Ref 2 Preamp, Pass labs electronic Xover, Bryston 4B ST amps (2), MAGGIE 20.1 speakers. All eqpt working OK.

Pre source eqpt left rear of room
spkr amp & XOVER left front of room
spkr amp right front of room

Separate 20 amp circuit for hifi eqpt. Other plugs in rooms for lamps, etc. Many of lamps on dimmers

Singlended IC's (now double shielded)are "under" flooring (pier and beam construction) & has been moved away from other wiring & cross at right angles

Initially some hum from dimmers (on separate circuit), etc. Have learned to leave them off.

But there is constant low level hum - right side only EVEN with preamp and XOVER turned off.
imdoc

Showing 1 response by roscoeiii

roscoeiii's avatar
roscoeiii
1,155 posts
 
Humbuster is specifically for removing DC from your AC line. So it will solve problems of transformer hum coming from the chassis of an amp, etc. But doesn't address the sources of hum that come out of speakers.

Great device if DC on the line is your problem, as it was for me at my old apartment.
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