hi guys, I'm quiet new to home audio, i have a Sony STR-DE 997B connected to 6 satellites and a sub all in my living room. I intend to connect the B-speakers terminals to a pair of Infinity primus-250 in my bedroom to listen to stereo music. The reciever permits use of B-speakrs and a sub for stereo music but it only has one line level sub-out. Is there a way i can run a second sub connection to my bedroom without resorting to use speaker level connections for that. I understand that this might underutilize my 250s. thanks guys.