I have had high wattage (even pro amps) powering speakers. I might have noticed a slight volume increase but never felt the seprate amps/pre-pro was worth the added cost. I guess it is all incremental. I have recently gone back to receivers. I use a Harman AVR-2650 in the theater and an older but mint Denon AVR-2805 in the living room.
3/29/14 at 4:04am