Thanks for your reply and insight. The speakers are Q acoustics 2010i and have an impedance of 6 which are compatable for the denon by my understanding, the denon is still activating the protection circuit with everything unconnected and just the power cord connected so i will assume that a chanel has blown and wait for the manufacturer to respond to my query as i have no electrical know-how to fix this myself. i dont know what could have caused a chanel to blow as i had double checked all the cables were on the right points and had followed the set up to the book. oh well! i suppose at this point i could justifiably say "Shit happens".
kindest regards, Ryan