@hobbes101 What do you have in close proximity to the amp? Satelite receiver? Cable box?
Never heard an amp do this before, ideas?
I have a primaluna 100 unplugged from any inputs. It has this awful high pitched sound coming from the speakers when it's turned on. It happens on both channels, and through headphones.
I have turned off all electricity in the apartment, turned all breakers off except the one it's on, moved the amp around the apartment, tried a humx, and different power cables. I even replaced the unit with another primaluna and they both do it.
I'm running out of ideas, anyone ever seen this before?
Showing 2 responses by oldaudiophile
@hobbes101 Wish I had an easy answer for you. I understand the anguish. The reason I asked about electronic equipment in proximity to the amp is because of a similar annoying issue I experienced that turned out to be caused by a DirecTV satellite receiver. I guess those things are really poorly insulated. Even though it was a few feet away from my amp on the equipment rack, it was causing an annoying low level, barely audible hum I could hear through my speakers whenever the volume on the amp was turned up relatively high (music or no music playing). As soon as I got rid of DirecTV, problem solved! My WIFI is on my stereo rack's top shelf, about 3 feet away from my amp on the bottom shelf. No problem! My 55" LG LED TV is right above my rack. No problem! I've heard of light dimmer switches causing interference. I doubt the rest of the things you mentioned could be a culprit unless the wiring in your apartment building is really ancient. Best advice I can think of is to higher an electrician (a really good/smart one) to come have a look. Good luck! Just out of curiosity, I'd be interested in knowing what this turns out to be. Even with so called expert advice from a number of accomplished audiophiles, I had a devil of a time finally figuring out my DirecTV satellite receiver problem. |