Black Widow ?

Jim Peter · Post by **Jim Peter** » 6 Jun 2003 9:44 am

I have a fairly new 15" B.W. that I had trouble with about a year ago and Mike Brown recommended that I clean out the voice coil gap. I did the masking tape cleaning method and I also blew it out with an air hose as Mike suggested. I put it back together and the thing worked great. Lately it started showing the same symptoms as it did a year ago and I cleaned the gap. Sounds good again. My question is why have I had to clean this so many times? It is in an enclosed cabinet and after taking the speaker apart a couple of times now I don't see how anything can get in there in the first place. Is there something else I should be doing?

Thanks,
Jim

Bill Terry · Post by **Bill Terry** » 6 Jun 2003 10:04 am

You said fairly new, but check the little foam filter in the center of the magnet structure. It may be disintegrating into pieces which end up in the gap, I had one that did...

Mike Brown · Post by **Mike Brown** » 9 Jun 2003 12:10 pm

We suspect the foam filter has disentegrated.

Jim Peter · Post by **Jim Peter** » 10 Jun 2003 9:16 am

Thanks for the information. I will see if I can find a new filter.

Jim