Eminence speaker issue

Hi,

like myself, some of you regularly do repairs to guitar amps - right ?

So you must have come across speakers fitted to combo amps from Fender and Peavey ( maybe others too) that have detached terminal blocks.

I just fixed *both* speakers in a Peavey " Clasic 50 " where the terminal blocks were hanging loose because both rivets had popped their tops.

The rivets are made of Aluminium with a flat top and hollow point inside the frame - the tops simply part company with the shaft of the rivet at about 10 years age.

My fix is to trim the rivets flush with nippers, punch them out of the frame and replace with 3.5mm bolts, nuts, star and plain washers and a drop of super glue. The bolt is fed from the inside with the plain washer on the outside.

Never had to do such a crazy thing before with any speaker - owners never seem to notice what has happened and find my story hard to believe.

Comments?

... Phil

Reply to
Phil Allison
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I generally replace them with a fresh through hole rivet and coated with panama red, to insure protective coating and vibration free to reduce fatigue.

Nothing like having loose hardware around a speaker.

Jamie

Reply to
Maynard A. Philbrook Jr.

Hi,

like myself, some of you regularly do repairs to guitar amps - right ?

So you must have come across speakers fitted to combo amps from Fender and Peavey ( maybe others too) that have detached terminal blocks.

I just fixed *both* speakers in a Peavey " Clasic 50 " where the terminal blocks were hanging loose because both rivets had popped their tops.

The rivets are made of Aluminium with a flat top and hollow point inside the frame - the tops simply part company with the shaft of the rivet at about

10 years age.

My fix is to trim the rivets flush with nippers, punch them out of the frame and replace with 3.5mm bolts, nuts, star and plain washers and a drop of super glue. The bolt is fed from the inside with the plain washer on the outside.

Never had to do such a crazy thing before with any speaker - owners never seem to notice what has happened and find my story hard to believe.

Comments?

... Phil

I've had a few of those. Causes very odd symptoms as the braids dance about and short on the speaker chassis.

I find 3.5mm bolts hard to come by in the UK so I use my stock of 3mm bolts instead. And these days I use Nylon locknuts rather than mess about with shakeproof washers / adhesives etc.

Gareth.

Reply to
Gareth Magennis

** Got mine from Farnell, a few years back.

Perfect fit in the rivet holes.

** The bolt and the terminal block will easily rotate in the hole if no star washers or super glue is used.

... Phil

Reply to
Phil Allison

** Got mine from Farnell, a few years back.

Perfect fit in the rivet holes.

** The bolt and the terminal block will easily rotate in the hole if no star washers or super glue is used.

... Phil

I have found Nylon locknuts to be invaluable in certain difficult situations.

Because they have substantially more height than a hex nut, they are much more easily held in a box spanner, or manipyulated with a finger until the threads engage properly. Sometimes this is the only way you can fit a nut onto a bolt where access to the nut is almost impossible, and fitting a shakeproof washer and hex nut more impossible than impossible.

In the past I have managed to stick them on the end of a very long philips screwdriver I have magnetised with a speaker magnet, and been able to position it so I could get the bolt to bite the threads. You can then wedge the locknut flats against the chassis using the screwdriver and tighten the fixing. (Think power amp front panel, trying to secure the bottom fixings via the top of the amp chassis)

Gareth.

Reply to
Gareth Magennis

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