I like the sound of the setup, even if I don't have a use for it. Just for clarification on the subwoofers, though, would these be new iterations of the subwoofer amps with the wireless capability built-in, or would the wireless receiver be a dongle that can be added to existing subwoofers? Also, how many subs can be managed in the system? Just one, or would you be able to run multiple subs?