My rig is significantly insufficient. I need to know about this as I am about to go out and buy more rig. My amp clips anywhere above 11 o'clock on the pre gain. The amp is 330 watts, 4 ohms. Cab is 4x10, 350 RMS 4ohms. Bass is active. I play a lot on the low B, which is tuned at Ab. So I use a lot of low frequency which my cab cant handle but thats beside the point. And there is two really loud guitar players to keep up with. So, right now I sound like crap. One problem is my cab not handling the lows. But, why does the amp clip so readily in this set-up? Too much low? Not enough power? If I had a better cab(s), would the amp react differently? All of the above? If possible, I want to use my 330 watt head and just get a different 410, such as the Eden XLT or Ampeg HLF. Is this advisable, or do I really need more power because of the lower tuning?