Two months later, any progress with your Diapasons?
I have a pair of 2014-vintage Diapason 2. In addition to a larger "Double Eagle" bass cabinet, the passives on this series were changed to a standard looking poly cone design with rubber surround. I haven't pulled one yet to see if it's internally weighted in any manner. No need, I have no concerns about the bottom end.
I gather yours are a version of the original design, with the passive having a ribbed cone, foam surround and washer glued onto the dust cap. I'd be more wary of replacing those types with generic passives than I would on the newer ones like mine, if for no other reason than the ribbed visually look quite different to anything else out there.
I have a pair of 2014-vintage Diapason 2. In addition to a larger "Double Eagle" bass cabinet, the passives on this series were changed to a standard looking poly cone design with rubber surround. I haven't pulled one yet to see if it's internally weighted in any manner. No need, I have no concerns about the bottom end.
I gather yours are a version of the original design, with the passive having a ribbed cone, foam surround and washer glued onto the dust cap. I'd be more wary of replacing those types with generic passives than I would on the newer ones like mine, if for no other reason than the ribbed visually look quite different to anything else out there.