I recently purchased a Bergantino HT2x10 and I power it with a GK 1001RB. I plan on getting the Berg 1x15 very soon. I have read that Bergs need a a lot of power to open up.So what I need is a power amp that will have enough wattage to power both cabs together. I was thinking about going QSC PLT or maybe a Stewart world 2.1. Does anyone have any sugestions on a power amp?