If you want to play loud with authorityand keep it clean with speakers of that efficiency level, you would need 1000+ wpc and speakers that could sustain that type of heat dissipation. You obviously need speakers with a much higher sensitivity if you're going to accomplish your goals without buying a new amp. I won't go into specifics here, but "rocking" and "chilling" typically work best on different systems. Then again, my idea of "rocking" is probably MUCH different from that of most folks, so you might be able to combine those traits and be happy. I couldn't and that's why i have several different systems. Sean
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