Runing my 7700 thru my Monster Power 2600, along with a Denon 3803, a DVD player and a DirecTV Tivo HD receiver, I was pulling 2 amps (via the LED on the Monster 2600)/
When I cranked the volume WAY UP during a HDTV broadcast with Dolby Digital to an insane level, the LEDs indicated only a 4 amp total draw.
I would NOT listen to any movie or concert DVD at this level. However, I may attempt it again with my SPL meter to see how loud it really can get!