Hey folks. I know this is a subject that has been beat to death with other threads but maybe someone can give me a little insight into what my problem may be.
I just picked up this B3 for practice/rehearsal. When I got it home and started pushing it a little, I noticed that there was a slight buzz that sounded like it was coming from the bottom left side of the speaker.
The buzz starts at about half volume with the bass adjustment anywhere over its mid-point. Most predominant on the low G.
I took the amp completely apart, cleaned, fiddled, contemplated, and put it all back together making sure everything was nice and snug. No change. Still got that little buzz.
I figured speaker from the start. Ordered a replacement Eminence. Dropped it in, fired it up, and still has this exact same buzz coming from what sounds like the bottom left (7:30) position on the speaker.
The plastic, cup like, handles on the side seem to pick up the buzz and radiate it out the sides of the amp. With the handles out, it sounds like the speaker frame is picking up the buzz and radiating it through the cabinet.
Here's where I'm at.....
There is a small portion of ply missing in the middle of the baffle board at that location. That's my prime suspect but I'm not sure how to handle it. Replace the whole board because it could be a result of several voids in the ply wood? or Repair with some watered down wood glue and followed by some hardening filler?
Could it be air leaks? I'm tempted to throw a tube RTV sealant at the thing but it will be a mess to take apart if that is not the problem. There are definitely some leaks in the cabinet. I can feel the air pushing out around the handles and the speaker wire passes through a drilled hole into the enclosure with nothing to seal it.
Comments, suggestions, sympathy?
I just picked up this B3 for practice/rehearsal. When I got it home and started pushing it a little, I noticed that there was a slight buzz that sounded like it was coming from the bottom left side of the speaker.
The buzz starts at about half volume with the bass adjustment anywhere over its mid-point. Most predominant on the low G.
I took the amp completely apart, cleaned, fiddled, contemplated, and put it all back together making sure everything was nice and snug. No change. Still got that little buzz.
I figured speaker from the start. Ordered a replacement Eminence. Dropped it in, fired it up, and still has this exact same buzz coming from what sounds like the bottom left (7:30) position on the speaker.
The plastic, cup like, handles on the side seem to pick up the buzz and radiate it out the sides of the amp. With the handles out, it sounds like the speaker frame is picking up the buzz and radiating it through the cabinet.
Here's where I'm at.....
There is a small portion of ply missing in the middle of the baffle board at that location. That's my prime suspect but I'm not sure how to handle it. Replace the whole board because it could be a result of several voids in the ply wood? or Repair with some watered down wood glue and followed by some hardening filler?
Could it be air leaks? I'm tempted to throw a tube RTV sealant at the thing but it will be a mess to take apart if that is not the problem. There are definitely some leaks in the cabinet. I can feel the air pushing out around the handles and the speaker wire passes through a drilled hole into the enclosure with nothing to seal it.
Comments, suggestions, sympathy?
