jozeppy26
Active Member
That's interesting. Never heard that. I don't know any different. Thanks for the input.
Bubba57
I ran across it when someone on a very old thread was asking if they should upgrade their foam woofer to a later hpm-100 woofer with cloth surrounds (or something like that). I’ve also ran across very early HPM-40s in my area that lack the silver aluminum ring around the tweeter (it’s all black instead) and have dry rotted woofer surrounds.