speaker repair - shim vs '30hz'

[pierce]

grills off at the moment, and worse, they are crowded against the wall, half buried in stuff, and I'm sitting like 2 feet from one. this all conspires against these speakers, I know.

I *need* to clear out some of the clutter in this end of this room and open it up so I can move my computer farther away.

[Oldmics]

I"m sticking with the shims.

I have done the 30 HZ and also a sweep 20-90 HZ wave with mixed success.

I think shims and replacing the dustcap is the one shot guaranteeded method of replacing the surrounds.

Oldmics

[subwoof]

I remove the entire kit on most of the 12 and 15's esp if alnico since buying one here, one there and so on means a smattering of ages, conditions and of course the questionable magnet issue.

Of course then you can actually LOOK at the former / coil to see any bubbling, seperation, glue cracks, etc.

This summer it's off to visit my sister with a vanload of alnicos to get rezapped at a nearby center. Funny how a load in the van that's only 6" high makes the mischlins squish down...

ALWAYS shim. most of the time new litz wires and a good cleaning of the gap is required.

once you scrape a 2203 coil it's all over.