Thanks for the input guys. When I said I moved the amp I meant I moved the subwoofer from one house to another in the back of my SUV. 86 mile commute.
I have checked in and out lines, connections, volume setting, lowpass setting, etc. I hooked up another subwoofer to my receiver with the same cable and it worked fine so I have isolated it to the subwoofer itself.
I have not tried to open the RSW 12 up but given that it seems destined for the landfill otherwise I am probably going to
I am better at landscaping than electronic repair though.....
I am probably going to buy a replacement, any recommendations. It is paired with some pretty beefy B&W fronts and center. I forget the models and Im 2000 miles away this week
Thanks for your help.