Carvin X-100B -- is this a tube problem? - Jemsite
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post #1 of 3 (permalink) Old 01-10-2003, 04:35 PM Thread Starter
 
Join Date: Jan 2002
Location: New York, NY
Posts: 40
Carvin X-100B -- is this a tube problem?

I'm relatively new to using tube amps -- mine's a Carvin X100-B. (I like it a lot!) I bought it used "with new tubes" (4 6L6 and 3 12ax7). I have not replaced the tubes in the year or so since the purchase. I always play on the dirty channel with the lead drive all the way up and the master volume about 3 or 4. Recently I have noticed two things:

1. An intermittent wind-like noise, like someone blowing across a microphone. More noticeable at lower playing volume.

2. Pretty regular syndrome (at any volume) where the sound suddenly loses brightness, volume, and gets a little muddy. Sounds like the sound has receeded into the back of the speakers (Legacy 2x12 cab w/ V30s). Most often after some time (15min at least) the sound comes back to near normal.

I use good cable and there's no obvioous problem with the input jacks. I would be grateful for any advice. Thanks!
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post #2 of 3 (permalink) Old 01-10-2003, 04:51 PM
EKG
 
Join Date: Oct 2001
Posts: 2,284
IMO, the tubes should be replaced regardless. That may solve your problems. I recently had a problem similar, but I noticed it was only on one guitar and turned out to be a poor 5 way selector ;-)
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post #3 of 3 (permalink) Old 01-13-2003, 01:46 PM Thread Starter
 
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Location: New York, NY
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Thanks Eddie. Will get new tubes and see what happens.
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