Help needed solving amplifier problem/mystery


Hi all,
I'm hoping to get some advice solving a mystery with sporadic amp performance... I'm using a Spectron Musician Hybrid 2 amplifier - 500 watts x 2 with PSB Gold i speakers, Denon 2900 CDP and a Promitheus Audio passive preamp. Also use a Panamax 5300 power conditioner and the Spectron is plugged directly into the wall. Generally I'm very happy with my "working man’s" 2-channel system. But periodically my right speaker works only very faintly where I barely get any sound - but I do hear very soft music – about 5% the volume of my other speaker. If I continue to play music for an hour or so the problem goes away and all is good. This happens every month or so and I can't figure it out. I've troubleshot/isolated the problem to the right channel of my Spectron amp (it's not the source cd player, speaker, speaker cable or ic cables, so I am deducing it is the amp). My Spectron is under warranty - I sent it in for repair and they could not find any problems with the amp. I did not have this problem again after receiving the amp back from Spectron (about a month ago now) until today. Any thoughts or suggestions as to my problem and how to fix it would be greatly appreciated!!

Many thanks!
canjo07

Showing 3 responses by canjo07

Lapierre, the speaker and ic cables are tightly connected. Mofimadness, I'd agree with you on the crossover, except when I swap speaker cables the problem moves to my left speaker. When I swap speaker cables and ic's, the problem stays with the right amp channel. thanks for the advice though!
Thanks for the suggestions. The problem re-occurred this morning, so I think I will contact Spectron.
Thanks all for the responses. Atmasphere, I did what you suggested and it is still the amp channel. Interesting note now though is 6 minutes after a cold start up the channel comes to life and everything works. I had not noticed this before. Btw, I've been in contact with Spectron and they are great to work with and a great company - I'm sending the amp to them today to troubleshoot and repair.