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Topic: BW cone/voice coil rub on Nash 1000? |
Paul Arntson
From:
Washington, USA
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Posted 9 Feb 2007 4:56 pm |
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I thought there was an old topic on this but I couldn't find it so I'll clutter things up with a new topic.
I want to start by saying I love my Nash 1000 amp. It's the first Peavey amp I ever bought, and now I see why they are one of the gold standards for steel.
Here's what's up:
I have a kind of funny distortion that comes in at only the low notes. I think it's been there always (I only play out a couple times a year) but it is really evident now that I got a new archtop 6 string and I am trying to play thru it. In the process of rendering the archtop playable (which is why I got it so cheap...) I started trying to eliminate all the vibrations and rattles that bargain archtops are famous for. I finally got to one that I couldn't get rid of. Then I tried different guitars, and it's in the amp.
The buzz also stays there as the volume goes down. I've always just thought it was something in my music room vibrating, but now that I tracked it down, it's the amp.
Then I went back and listened to my lowest strings on the steel thru it and it is there.
I'm thinking the voice coil is rubbing, because it doesn't follow any particular guitar or cable, and it comes in thru all of the different inputs on the front of the amp, so it's not the preamp.
I'm taking it in tomorrow (2 weeks out of warranty on the speaker but we'll see) so I'll post what the shop says.
Anybody ever experience this? Could the cone have warped with heat or humidity or something? Any other ideas? |
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Jack Stoner
From:
Kansas City, MO
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Posted 10 Feb 2007 3:12 am
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There is a procedure "clean the gap" I think is what Peavey calls it.
It involves taking off the magnet and cleaning any debris that has happened to get between the magnet and the speaker housing. Try that and see if it makes a difference.
I had a BW speaker that had some "distortion" and that worked for that speaker. |
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Paul Arntson
From:
Washington, USA
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Posted 10 Feb 2007 10:13 am
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Yep! That fixed it!
Thanks, Jack!
This forum is the best.
I couldn't find a reference on Peavey's site with the directions, but a quick search yielded the following illustrated directions.
http://www.loudspeakersplus.com/html/replace_basket.html
Kind of freaky operation first time through. Definitely need to be real careful lifting that big old magnet in and out. Probably a good idea to empty out the shirt pocket first. No pacemakers allowed.
Thanks so much. Saved me a trip to the music store and probably $100 to boot. |
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Jack Stoner
From:
Kansas City, MO
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Posted 10 Feb 2007 2:54 pm
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Lee Baucum
From:
McAllen, Texas (Extreme South) The Final Frontier
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Posted 10 Feb 2007 3:06 pm
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For reference, here is an old discussion about this:
Click Here |
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Kevin Hatton
From:
Buffalo, N.Y.
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Posted 10 Feb 2007 5:56 pm
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| So I take it that there is NO way to do a voice coil cleaning/inspection on a JBL E-130? |
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Mike Wheeler
From:
Delaware, Ohio, USA
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Posted 10 Feb 2007 6:31 pm
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Correct, Kevin. At least, not without damaging the speaker.
_________________
Best regards,
Mike |
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Jim Eaton
From:
Santa Susana, Ca
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Posted 10 Feb 2007 6:41 pm
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I recently got a great deal on a Nashville 1000 because the shop thought the speaker was blown, but cleaning out the gap with the folded masking tape trick made it sound perfect!
JE:-)> |
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Kevin Hatton
From:
Buffalo, N.Y.
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Posted 10 Feb 2007 8:28 pm
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| Thanks Mike. You just educated me. This is a great forum. |
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Jim Bob Sedgwick
From:
Clinton, Missouri USA
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Posted 10 Feb 2007 9:35 pm
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Having done this three times, I am now an expert! 
If the foam has turned to dust and then the tarry like substance, I discovered that rubbing alcohol will disolve the gunk and get it clean. ( I tried gasoline, no luck, paint thinner, no luck, alcohol....Eureka! FYI |
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