Grant,

You can't use your speaker connections on your Sony to the Line In on an amplifier. You would be better getting a different receiver. Never heard of E&W, sorry.

Why do you think you need more power? At 100watts per channel the Sony should play to very loud levels, the 80's require very little power to play very loud.

How loud do you listen and how big is your room?

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