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Posted by rumblethump (188.8.131.52) on February 03, 2004 at 12:41:22:
In Reply to: Amp fails on loud notes posted by Greg S on January 31, 2004 at 08:42:43:
I don't profess to be an amp tech, but first I would try the speaker with another amp to see if it is the speaker. If you confirm it is not the speaker, you have your answer. I once had a volume/vibration related problem with an old Acoustic 360 amp. After sending it to 3 different techs, all saying they fixed it, it still crapped out when I pushed the volume. I disassembled the preamp frame and found all points of contact to have formed black oxidation from moisture. I cleaned all the contact points with 300 sandpaper and reassembled the pre. Amp performed like new. That fixed my problem, but you may have a part failing or a cold solder OR?????? The amp is 20 years old, I would take it to a qualified/recommended amp tech in your area and have it checked out if its not the speaker.
: I have a little GK 200MB amp which I purchased in 1984. It's always been loud for its size, but lately it's not holding up so well when it's cranked to 10. When I strike low notes hard, the note will just collapse into a barely audible fuzz as if the volume is too much.
: Is it a problem in the electronics or has is my speaker damaged or what?
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