Howdy, and thanks for the reply. Tried them last week, the original Dahlquist DQM 9C Magnat woofers are specific to that model, not in production. I have to locate one 'out there somewhere', they see maybe 1/2 dozen a year.
Of course the have the ability to recone and refoam, but the voice coil is specific to that model DQM 9C.
Regards, and thanks again!
Dan C - Audioplus93