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Need help! Ampeg 610 buzzing!

Gasman

Gasman

Supporting Member
Apr 9, 2007
1,746
1,152
South Carolina
#1
I've got an ampeg 610hlf that has starting a buzz sound when I play at any substantial volume. I've checked- it's not the amp or bass. I took down the front screen and all the speakers seem to be secure without obvious damage. I run an GK 800 rb into it (the 300 watt channel), which really shouldn't blow the speakers. Any ideas?
 
#2
not to de-rail brands but I just heard a distorted/buzzing in my Berg NV215 cab this week when I took it out to check it to prepare for a gig this weekend. Last time I used the cab, no ugly sounds came out of it at the gig all nite. Its been sitting in my backroom for a month or so, so dont know why it would go bad just sitting.

So anyway, there is a newer thread here where a guy says he started getting a buzz in his GB400T combo. Agedhorse, GB engineer, replied to him to check for air leaks or loose gasket around speaker or tweeter, I forget. But check that thread, Im gonna do the same to this NV cab, its only like 2-3 months old, dont think Ive pushed it hard enough to blow a driver. Ive also emailed Jim, waiting to hear back from him. Hope this helps and not just de-railed ya. Peace.
 
#3
Yep, air leaks, even the open 1/4" jack can cause buzzing. Air leaks can be around speakers, jackplates, tears in a speaker cone, etc. Air can leak through a cracked joint if the cabinet has taken a really hard fall, and that can cause a bad buzz.

So can loose anythings, including internal wiring or sound absorbing insulation that has dropped so as to touch the cone.

or "tinsel leads" from frame to cone that are too loose and whip around hitting the cone. That can come from playing hard, but is actually an original defect.

A loose grille can buzz badly

A badly glued 'dust cap" in the center of the cone can cause buzzing if it comes loose. Again an original defect, but shows up when played for some time.

If you have REALLY played loud, you can "cook loose" the voice coil on one or more speakers. That causes a nasty buzz until the speaker finishes failing.

There are lots more, but those are examples.
 
#4
not to derail but the above seems to be what Im experiencing. Ive heard burnt drivers before and what Im hearing in my NV215 sounds different than that. Dont think Ive played this cab loud enough to do damage and Ive only used it a few times. So maybe we are not dealing with drivers gone bad here. Waiting to hear from Jim on what to do here. There are plastic covers over the screen screws I guess cause I see no slots in what holds the metal screen in place to even try to remove it. Hope this helps one of us, back to your issues OP. :cool:
 

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