The catalog shows 2 D153 models, both spec'ed at 77mm deep. It also shows 3 200mm (8") and one 250mm (10") model.
The 10" is:
Depth 97mm
Weight 2.5kgs
Flux density 14k gauss
Power handling 50w rms
Resonant F 23hz
max power 70w
Nominal FR 25-3500Hz
Kal
The 10" is:
Depth 97mm
Weight 2.5kgs
Flux density 14k gauss
Power handling 50w rms
Resonant F 23hz
max power 70w
Nominal FR 25-3500Hz
Kal