The Studio 220 is rated at 220 watts at 4 ohms, however, on the amp, it says minimum load 2 ohms. So... At 8 ohms its 140 watts, 220 at 4 ohms... so what is it at 2 ohms? I've read that you divide by .667 to get the power rating when you half the impedence. That would give 330 watts. So.. does it actually just stop at 220 watts (swr says that is the minimum power at 4 ohms) or does it push more power with the lower impedence? Anyone know? I've run it quite a bit with a 4 and an 8 ohm in parallel which gives 2.66 ohms impedence and it is definately louder but obviously, it's pushing two cabs so it would be louder. The clip light on the master volume comes on at a lower volume level with just the 4 ohm cab than when I use 2 cabs. I havn't run it at 2 ohms yet because I like the amp a lot and don't want to break it. Has anyone run it at 2 ohms for extended periods? Any failures?