I have an Onkyo TX-SR706 Receiver and have problem connecting it to my Definitve Technology Pro Sub 1000 Subwoofer. The Receiver has a single cable output to the sub. But Sub does not have the input for this cable. So I am using the Monster Ultra High Performance Audio Y-Adapter MKII. The problem is that the male end of this cannot be connected to the Subwoofer, as the subwoofer has RCA jackets, which only accept speaker cables through a banana plug or spade. My question is, is there a connector that can be used ot circumvent this proble, or is it that I will have to buy a new sub? Thanks for any help you can offer.