Ok, so I think after LOTS of searching I got it... What it really comes down to is Clipping is pushing the AMP too hard right? It has nothing to do with pushing the cab (But Clipping will Damnage the Cab) And "Underpowering" is a "Myth" I read lots of contradictions on both behalf's... so a 1000w 4 ohm Cab with a 500w 4 ohm cab should be "Muddy" with this "Underpowering" effect... But I've also heard that say the Ashdown 300H 307w @ 4 ohms, in a Schroeder 1210 850w @ 4 ohms would sound JUST fine... But if this "underpowering" stuff were true, then it would sound "Muddy" and not "Just fine"... So what is it? Underpowering a Myth? Or a Fact? Clipping is when you push the AMP too hard? Thanks.