Hello all, need some help regarding subwoofer connection, connect a powered subwoofer (LFE in) to a amplified out (+/- wired clip-in) of the receiver. I have an Onkyo RT340 receiver and used the speakers provided in the HT package that used a passive subwoofer. Now I have a JBL powered sub-woofer with me but not sure if it can be connected. The receiver does not have a LFE out, it only has a positive/negative cable connection for sub-woofer probably the amplified out. New subwoofer has only LFE input. Please help.