A friend has a Xtant A 12', that's 4ohm. My two PA 10's are 400w peak each, 2ohm. The 12 doesn't have a box though, and I'd have to buy one for it. My amp is a 400w 2 channel, 4ohm? amp, and I think it could do an ok job pushing the Xtant. I don't know the model numbers for either, and I'm not sure what the Xtant's peak and what not is. It's also about two years old, but in good shape. Should I consider trading my two 10s for this 12?