Speaker cutting out intermittently


Primaluna Evo 100 feeding Primaluna Dialogue Premium feeding Klipsch Cornwalls.  After listening for several hours while straightening up the house, I noticed change in volume.  I checked and found left channel silent.  Turned off amp and muted preamp.  After a cool down, I reversed speaker connections on the back of the amp, and powered up.  Everything good.  I gently wiggled them before shut down, with no effect.  Since preamp remained on/muted, I’m ruling that out.  Power tubes are nearly new KT 150’s.  Warning lights for those tubes remain off/good.  Changed sources at beginning of this to rule that out.  So…any thoughts on this?  I’m not a tech guy,,basics only, so any insight is greatly appreciated.  

george53

Showing 3 responses by george53

Yup.  Checked and wiggled.  All clean intact and no corrosion.  Even considered crossover in speaker. Recapped @8 yrs ago.  Still think it would work or not, even after rest period.  Voodoo at this point.  Being retired, I can sit on a little stool in front of the speaker.  It’s like taking the car in for a fix, when it’s running ok.  Just have to wait for repeat performance 

Yup.  Checked and wiggled.  All clean intact and no corrosion.  Even considered crossover in speaker. Recapped @8 yrs ago.  Still think it would work or not, even after rest period.  Voodoo at this point.  Being retired, I can sit on a little stool in front of the speaker.  It’s like taking the car in for a fix, when it’s running ok.  Just have to wait for repeat performance 

Thanks all for the feedback.  I bought the amp new last summer.  Those connections on the back seem bulletproof.  Cable connectors are new. Sometimes though, you ignore the simple obvious and default to more complex possibilities.