Anyone out here that can advise me regarding replacement of Bose 901 speakers (the drivers themselves)? Fundimental resonance

[hishonour]

Driver replacements for Bose 901s.

 

[kanewolf]

A Google search shows pages like this one -- https/www.parts-express.com/grs-rsb901-1-replacement-speaker-driver-for-bose-901-4-1-2-1-ohm--290-922

 

[americanaudiophile]

Those are for series 3-6.
The speaker impedance will be higher in older versions of the 901. The drivers can be rebuilt or refoamed but since there are 18 speakers cost of repair kind of adds up.