You will find both sides of the issue discussed on this forum as well. I have a dedicated 20amp breaker just for my HT stuff. I also use a Tripplite HTPowerbar10 which has great surge protection and isolated banks for no cross talk.

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