Marantz HD 660 woofers.

Hi All,

First post here, maybe someone will be able to help.
Bought a pair of big Marantz HD660 speakers back in 1978 and they have been working fine for years.
A few years ago, the woofers foam surrounds started to desintegrate and fell off.
Not knowing at the time they could be replaced, the woofers were trashed and replaced by similar size but not original drivers (Earthquake kid's car woofers "boom boom...). Not very satisfactory...
I would like to retreive my old Marantz' original sound.
If someone would still have a pair of 10" woofers on his shelve, even with damaged surround foam, but intact voice coil and cardboard, for a reasonable price, I would be very grateful.
Thanks a lot in advance,
Cheers,

Hugh.