I picked up this subwoofer at a sale. I had no cables, so I bought the cables new from Powerbass.
I powered everything up and it sounded pretty bad. Upon inspection I found that the driver was damaged and threw that away.
All of the functions in the electronics worked perfectly otherwise.
So, the cables are basically new, and the electronics has been tested to work fine.
I include all of the random parts that I salvaged along with the new cable set.
You can repair one of these STA-8 units, or build your own with your own driver and cabinet.