Hey guys, I have a question....

First let me tel you what I'm working with:

Onkyo TX-SR700 Reciever
4 ea. Paradigm Monitor 5
Matching Center
Paradigm PS-1000 10' sub

My question is how do I figure out why Sub stopped working?

I know this isn't a high dollar setup but I have been really pleased with the bang for the buck. I noticed my sub stopped working and I think its the built in amp. The wiring is all in the walls and I have checked with other speakers that it is not the wiring. I have pulled the cable and "tapped" on the end to see if I can hear anything and nothing!

Any help on this subject would be greatly appreciated!