Members Remedy Posted May 20, 2006 Author Members Share Posted May 20, 2006 UPDATE- I managed to get the amp apart - had to unscrew one of the small valves and ease the chassis out.(small victory) I tested the amp with the guts open by sitting the speaker on the amp and looking for buzzes vibrations, inside the amp. The parts I found were buzzing, I have siliconed are - the screwholders(that hold the chassis inplace)- the 4ohm-8ohm switch, against the insaide of amp After extensive testing/ rechecking there is no more buzzing inside the amp BUT the speaker still buzzes inside - its slight but annoying I put everything back together and the buzz is still there on the low E string about A-B notes. So I geuss the speaker is faulty ?? anything else I can do to try and fix this? If not I geuss Im looking for a new speaker. Advice please on recommended speakers for this amp. Ive started a thread here http://acapella.harmony-central.com/forums/showthread.php?s=&threadid=1251585 Link to comment Share on other sites More sharing options...
Members Rick Wolf Posted April 21, 2020 Members Share Posted April 21, 2020 I have a Roland JC-40, only 7 months old, and I'm experiencing the exact same issue as this gentleman is- vibration from the speakers at low notes only. AND it comes and goes as well. One minute, its fine. The next, its Buzz city on the low notes Link to comment Share on other sites More sharing options...
Members Grant Harding Posted April 22, 2020 Members Share Posted April 22, 2020 Are you sure it's not something else vibrating in the room? I'd try to see if it happens outside. Link to comment Share on other sites More sharing options...
Members Dr. RevBoa Posted January 20, 2021 Members Share Posted January 20, 2021 On 5/17/2006 at 12:20 AM, BoyoMcLadd said: Play the offending note and press up on a tube from the bottom.You can do this with a pencil eraser although I do it with my finger.If it stops rattling , thats your tube. Also , put it up on a sofa and look at the guts while playing.My amp had rattling from wires touching the chassis floor.If you see a wire bouncing that's part of your prob. Walk around the room and make sure it doesn't get louder as you walk away.A hanging picture frame for instance. Pressing up on a tube with a finger when an amp is on is generally not a good idea. The plate voltage on tubes can easily range from 300 to 600 volts. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.