by **mesherm** » Thu Jan 17, 2013 12:45 pm

I had a similar problem with a pair of Infinity HPM15s. The foam surround on the 15 inch woofers was "perished" (to use my British friend Joey's description).

I removed them and shipped them to A Brown Soun and they rebuilt them good as new.

Do those Polks use a passive radiator? If so the active speaker properties of any replacement should probably match pretty closely. I suspect that Polk used the same midrange drivers for many of their models of the time. I used to own a pair of Polk 10Bs which I foolishly sold a few years later before I was interested in tube amps.

Mike's N-1 Rule: When looking for N number of components to finish a job, you have a 95% chance of only finding N-1 of them.