Same power supply so it really is not true bi-amping, more like Buy Wiring. \:\)

Just hook up those 50's and enjoy, there is no way that receiver has to much power for them.

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