Driver replacement in order?

geoff727

I noticed that one of the mid/bass drivers on my -1C's has a small crease in the cone where it is glued to the rubber surround, radiating outwards. It looks like someone in the past accidentally pressed on the back of the cone with their fingertip, putting the crease in it. When you press on that area now, it's obvious that it's somewhat weak. Anyone have any thoughts on whether this driver should be replaced?

Actually, I was strongly considering springing for a brand new set of drivers from Polk, including the silk dome tweeters. Might take a while before they get here, after all the other orders get filled. But it would be neat to have brand new drivers. I'm not sure how much musical abuse the current set of drivers has sustained over the past 20 years.

avguytx

That or keep your eyes open on Ebay for a replacement MW6511 or 6510 (depending on if it's the stereo or dimensional mid). They are reasonable sometimes.

geoff727

Ya, I'm always keeping my eyes peeled on ebay. My thought is, though, if I'm going to replace one, I might just take a leap and replace them all with new ones, just to keep everything consistent (I'm pretty anal about these sorts of things). Besides, by the time I'm finished working on these babies, I hope they last for another 20 or 30 years!:)

Joe08867

There are a pair of 6510 on ebay right now. Here is the link. The guy actually has 4 but is selling in pairs.

http://cgi.ebay.com/Polk-Audio-MW-6510-6-1-2-Mid-Woofers-From-M-11T-1_W0QQitemZ250163590595QQihZ015QQcategoryZ3276QQrdZ1QQssPageNameZWD4VQQcmdZViewItem