<font color='#000000'>My Wharfedale Diamond 8.3's (sensitivity = 86), powered by my Yamaha RX-v630. I've read about inefficient speakers needing lots of power to sound good. I wouldn't consider this receiver as delivering "lots of power". Yet, I crank it as loud as I want, for as long as I want, and hear nothing but clear sounds. I must be missing something? From what i've read, I should upgrade my receiver, or add an amp. Yet, my ears make me ask, why?
Dave</font>