Cab repair

the corpo

Have had a problem with my cab that's been getting progressively worse over time, it's a Laney LH50R, with a 4x10 cab. At any decent volume there's an irritating buzz. Speakers are all fine, I brought it for a service to Jimis guitar shop, who could hear but not identify the problem. I've a feeling there's a crack in the frame somewhere, and indeed I can see in the body where a screw has been over tightened and done some slight damage. I do think though that that damage has always been there, I just can't identify any other possible cause.

Anyway, so Jimis couldn't fix it, and Aladdins amps reckoned it was beyond their remit too. Will try Martin Nolan but I've a feeling I'll get the same response. Any ideas of any other cab/amp specialists I could try??

I've tried many other cabs with the head, but none come anywhere close to how great it sounds, so fairly desperate to fix it!

kevin65

If you think this is a structural issue, maybe a decent cabinet maker might be able to sort?

the corpo

you a mean a joiner/carpenter? aye, but was hoping that there might be someone more specialised in guitar cabs especially

Squidgy Black

See the problem there is, there's no real custom amp builders in Ireland (AFAIK), so your best bet would be a decent enough carpenter who could fill the hole or replace the section, and if the buzzing persists, drop it down to Martin Nolan.

kevin65

the corpo wrote: »

you a mean a joiner/carpenter? aye, but was hoping that there might be someone more specialised in guitar cabs especially

Yes, a decent joiner or carpenter would be similar to a cabinet maker. However, you need to be very careful as there are alot of bodges out there that would end up hammering a few nails into it and ruining the cab. The problem with something like a cab is that the tolex on the outside may be masking the problem if the problem is with the outer frame. If it's possible to fully remove the back panels and the front panel including speakers and wiring it should make it easier to inspect the rest of the unit.

Grolschevik

the corpo wrote: »

Have had a problem with my cab that's been getting progressively worse over time, it's a Laney LH50R, with a 4x10 cab. At any decent volume there's an irritating buzz. Speakers are all fine, I brought it for a service to Jimis guitar shop, who could hear but not identify the problem. I've a feeling there's a crack in the frame somewhere, and indeed I can see in the body where a screw has been over tightened and done some slight damage. I do think though that that damage has always been there, I just can't identify any other possible cause.

Anyway, so Jimis couldn't fix it, and Aladdins amps reckoned it was beyond their remit too. Will try Martin Nolan but I've a feeling I'll get the same response. Any ideas of any other cab/amp specialists I could try??

I've tried many other cabs with the head, but none come anywhere close to how great it sounds, so fairly desperate to fix it!

It might have something to do with the way the speakers are mounted. I had a 2x12" that buzzed at 440hz. Turned out to be a loose speaker mounting (front loaded). At some frequencies, anything that can vibrate, will vibrate.