Hi, Here's a pair of rare birds...The AS-1320 subwoofer tower loaded with the AS-1321 mid-high section is dubbed the AS-1324, a 4-way design (big towers) incorporating some good drivers (Foster leaf tweeter.Dynaudio D52 mid, Peerless TP165 mid-bass, and the in question 15" woofer) As usual the 6 1/2" Peerless TP165 mid-bass drivers foam is gone, and the mystery make 15" (sub?)woofers are foam rotted as well. This speaker is rated to go down to 20hz. I have tried everything I know to find out what the 15's are, to perhaps track down the proper surround kit (not that I've tried re-foaming myself yet...) but sure would consider suitable replacements (maybe for the Peerless 6 1/2's as well??). Member K2SA has been very helpful sharing what he knows of these, but the 15 remains a mystery...Anyone out there have any info or thoughts they could share on these? Any feedback on these would be most appreciated!