I was thinking of plugging my old GK 410 into my combo because we're playing a larger than normal room this weekend. Anyone ever run a MB150E combo with a 410 cabinet? Truth be known I'm kind of a knucklehead when it comes to impedance matching, I never quite understand the rules of what ohms you can go into what. And if you get it wrong can it damage the equipment? I'll try it out first but any thoughts on the matter are welcome. PS - Don't look forward to humping the cab around, but it's a good place to put books on.