2. amps-preamps
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Classe CA100 - Static, Cut Outs when cold. Ideas?

So I recently purchased a Classe CA100 amp. I removed my old amp from a perfectly working system and installed the Classe. Upon first playing music I immediately noticed something was wrong. The channels were dropping out at random and the was static coming through. I assumed the amp was broken.

Then as I left the music playing while I tried to to figure out the problem it seemed like the symptoms were going away. After an hour the amp sounded okay. Then today, after remaining on all night I played some tracks at a high volume and it seems okay. So I turned it off while I'm at work and I'm going to see how it does from cold again.

Any ideas what would cause this? There is a B&W service center (parent company of Classe) 10 mins from my house. I may look to see how much it would cost to give it a once-over. How much do you think?

Thanks
miatame

Showing 1 response by erickjmichel

erickjmichel
3 posts
 
I know this thread is many years old, but maybe people can still use this information.  I have a CA-150 with a similar issue, but it isn't just when cold and I don't hear static, just silence.  I could have a channel drop out at any time, but only at low volumes.  Crank it up, and the channel is back.  It's been going on for many years, and I had always assumed it meant the tubes in my preamp were near end of life.  But now I've replaced the tube preamp with a solid state, and the problem was still there.  So I've been using the CA-150 recently with the top off, and when it occurred today, I poked at a few components (with plastic of course) looking for a loose solder joint or whatever, and when I poked the right channel relay, it clicked back on!  So, I'm trying to locate new relays, although it may just be a solder/socket issue.  
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