Just bought a denon 1905 reciever and wharfdale moviestar 60+ spreaker package from superfi and although I have managed to get the sats working alright I cant seem to get the sub to function. I have followed the instructions in wiring it up correctly (I think!) but there doesnt seem to be a signal reaching it. It will emit a sound on test mode but during a dvd it is silent. On the back of the sub theres a button that can be pressed that will automatically switch the sub to standby when it is not recieving a signal - this is what it does while playing a dvd. Please help before I have to take a sledge hammer to it!