My six year old receiver just crapped out on me. No sound. First, after turning it on, it would take a minute or two then it would have sound. Got tired of this, so I left it on. Then, the sound stopped. Sound came back a few hours later. Now, there's no sound at all. If I'm unable to repair it, I'm going to have to get a new receiver. The problem is that while I can use my existing speakers, my subwoofer is passive, with only wires for a connection. Most, if not all, the receivers I've been looking at have rca inputs for a powered subwoofer. Is it at all possible to use a banana adapter to use my passive subwoofer on a new receiver ? I really don't have the money for a receiver AND a new subwoofer....especially since the subwoofer, when sound is going to it, works fine.