Time to close this one up with some good news. Sonic Boom pre-paid the shipping for the return of the old amp and driver so thanks to them for that little surprise. As far as I can tell, everything is good with my subwoofer situation now.
If I could just get Integra to return my processor, I could hook everything up and calibrate the levels with the SMS-1. Unfortunately, I am stuck listening to by TV speakers until Integra sends me a new processor who knows when.