Hi - I have a Yamaha RX-V565 7.1 AV Receiver. Just purchased a BIC H100 Acoustech Sub-woofer. I'm using an RCA jack from the receiver's sub-out to the sub-woofer's sub-in. On the sub-woofer, do I set the toggle switch to "Pro-Logic Receiver" or to "Digital 5.1 6.1 7.1 Receiver"??? Thanks guys.