What is the best method to reverse engineer a woofer to a subwoofer enclosure. I am working on a subwoofer for my SIL. It is a 10" Bohlender Graebener Z sub. The voice coil rubs, and the cone has disconnected from the VC.
My choices are;
Try to find used replacement sub or driver.
Have the driver repaired.
Find a new compatible/equivalent replacement to fit the enclosure.
I am thinking the 3rd option would be the easiest to source once I determine the requirements. The dimensions of the interior of the cabinet are;
14-3/4" Deep x 15-3/4" High x 11" Wide. It has a ~3-3/8" diameter x 9" long port.
Interior volume is taken up by a brace, the woofer, the amplifier & the port. The gross volume is ~1.4 cubic feet. After subtracting the brace, woofer amp & port the interior volume is ~.75 cubic feet.
Since I don't know the impedance of the woofer, I will go out on a limb and say it is 4 ohms. The amplifier looks A/B and pretty beefy based on the transformer.
BTW the woofer has what may be a part# (10P32) and date code (20030430D) if anyone can tell by this where to find a replacement. It has a stamped steel basket and a vented pole piece.
