Hey, Big Tuna!
I have some Marantz HD770 and HD660 speakers in nice shape w/ all original drivers that I've had for several months. Both pairs have the original Vari-Q plugs with old, rotting foam.
Can you describe for me in a little bit more detail how you go about refurbishing these Vari-Q plugs? I've read your post about obtaining sheets of closed-cell black foam from Lowe's, and then "rolling and angle-cutting it" to size, but I'm a little bit confused as to what you mean by "angle-cutting" and how you would keep the roll together once it's on the plug. I do understand that the foam roll, when finished, needs to be slightly bigger than the hole in the cabinet to ensure a nice seal.
Also, do you happen to have any spare Marantz logo badges from the HD series speakers that I might be able to purchase from you? Neither of my speaker pairs have the original badges.
Thanks! --Matt