Keep the inputs plugged in! Problem solved!
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?
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- 42 posts total
Take the amps to your local stereo shop to check out some speakers with it. Gives you a reason to go listen to some speakers. Maybe even to work with a pair of headphones. Eliminate the environment. You would not be using expensive speaker cables, would you? I'm recalling back in the day, there were speaker cables that certain "tube" amplifiers did not like. Would set the amp into oscillation. My idea was that the circuit were seeing a resonant tank circuits of their tubes, transformer and speaker cable. Try going back to zip wire or other cable. |
I second @jasonbourne52 suggestion. Does it make the noise when the inputs are connected to something and amp is powered on? |
@hobbes101 What do you have in close proximity to the amp? Satelite receiver? Cable box? |
- 42 posts total