Received the adapter today and hooked it up. No sound at all from the sub. I have a call in to Axiom. Waiting for the return call. Will let you all know what the verdict is.
This sounds almost identical to the issues I've been having. My poor EP500! Is it dead? I received my new woofer today but I haven't installed it yet.
Panasonic TC-P65V10 65" Plasma Sony KDL-55XBR8 55" LED LCD Yamaha RX-V3800 Axiom Epic 60 - 500 (7.1)