If you want, many people run a seperate circuit (20amp) for their HT and AV stuff. Not sure you need a seperate line just for the amp, seems like a waste.

My 20 amp circuit runs my:
Denon 2805
2 Odyssey Khartago Extreme monoblock amps (for the 80's)
HTPC
Sony CD player
Velodyne SMS-1 EQ system
Sanyo Z2 projector
and a few other things.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85