Overall Diameter = 462mm

Mounting Holes = (8) 6.4mm holes on a 441mm B.C.D.

Cut Out = 425mm ; Maximum thickness of baffle at cut out = 1.25" (32mm)

Weight = approximately 44 Lbs.

Depths assuming "drop in" or "standard" mounting:

Mounting surface to back of driver = 224.50mm

Mounting surface to top of surround roll, full excursion = 48mm

Diameter for the depth above = 345mm nominal.  Suggest you use 355mm to account for the cumulative errors associated with cabinet and grill errors... depending on the application.

Overall Diameter = 388mm

Mounting Holes = (8) 6.4mm holes on a 370mm B.C.

Cut Out = 354mm ; Maximum thickness of baffle at cut out = 0.75" (19mm)

Weight = approximately 42 Lbs.

Depths assuming "drop in" or "standard" mounting:

Mounting surface to back of driver = 197.9mm

Mounting surface to top of surround roll, full excursion = 48mm

Diameter for the depth above = 268mm nominal.  Suggest you use 278mm to account for the cumulative errors associated with cabinet and grill errors... depending on the application.

NOTE:

The Acoupower Sub Drivers all have venting through the rear of the driver.  It is very important to allow sufficient room for air to move easily in and out of these rear venting holes.  It is also important to keep any insulation far away from these drivers, or they will ingest the insulation.  This is especially the case with the Acoupower drivers as the movement of air through the rear vent can be enormous.