I have a Denon AVR 586 and Denon SYS-56HT speakers.
I was flicking through the TV channels (freeview HD box) and the Freeview HD demo channel had way louder sound than anything else - it was quite startling.
Can this sort of abrubt change in volume damage speakers?
These are the speakers I have:
http://www.denon.co.uk/site/frames_main.php?main=prod&ver=&MID=3&sub=1&fill=1&action=detail&Pid=259&