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Topic: Black widow questions |
Joe B. Long
From:
Llano Tx USA
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Posted 20 Apr 2015 6:46 pm |
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I have a couple of questions about black widow speakers. First how important is that little piece of foam under the screen on the back of the speaker? Can I use some foam that I have or do I have to get a Peavey replacement part? Next, what is the difference between the 1501, 1502, etc? Lastly is there any way to tell if one is about to blow out? The last gig I played it made a crackling sound at any volume over medium. I couldn't get it up to stage volume without a good amount of "scratchy" sound. I noticed upon taking the speaker out of the cabinet that the front dust cover was torn some. Could that be the cause of the crackling or scratchy sound?
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Where do you want it?
Billy Joe Shaver |
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Richard Sinkler
From:
aka: Rusty Strings -- Missoula, Montana
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Posted 20 Apr 2015 8:45 pm
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Mine no longer has the foam and it works great. The 1501 is a guitar speaker with a smooth cone and the 1502 is a bass speaker with a ribbed cone. The 1502 is my favorite speaker. That's what came in my '84 Nashville 400.
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Carter D10 8p/8k, Dekley S10 3p/4k C6 setup,Regal RD40 Dobro, Recording King Professional Dobro, NV400, NV112,Ibanez Gio guitar, Epiphone SG Special (open D slide guitar) . Playing for 54 years and still counting. |
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Tommy Mc
From:
Middlesex VT
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Posted 21 Apr 2015 8:16 am
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Joe, there's a good possibility that the deteriorating foam is the source of your crackling. I recently had a similar issue. If you remove the 3 allen head bolts holding the magnet, you can separate it from the basket. There is a circular slot that the voice coil moves in and there are close tolerances. If any of the crumbled foam has gotten in to the slot, the speaker will act like it's blown. In my case, the old foam had turned to gum. I was able to clean it up with a Q-Tip soaked in rubbing alcohol...and some patience. The speaker now works fine.
I didn't replace the foam, but logic says that it's probably there to keep dust out of the voice coil. I suspect that any replacement material needs to be porous so that pressure from the speaker cone moving can equalize, but it shouldn't be critical to get an "exact" replacement. Probably some foam from a lawn tractor air filter would work. |
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Lane Gray
From:
Topeka, KS
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Posted 21 Apr 2015 2:10 pm
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I wonder if a microfiber cloth taped/glued over the hole wouldn't provide adequate filtration
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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Joe B. Long
From:
Llano Tx USA
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Posted 22 Apr 2015 10:39 am
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Thanks for the advice!!! The foam piece was completely gone on the speaker in question. No trace of it left. I will try to clean out the "groove" later and see what happens.
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Where do you want it?
Billy Joe Shaver |
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