I am trying to figure out what driver I should get to replace a blown 8 ohm peavey scorpion. I have the Peavey 115BX cab, and a 210TX (4 ohms). My SWR head will handle a 2ohm load, so I am looking for a 15" rated for 4 ohms. Also, I am wondering about the power my speakers will handle. My amp puts out 450 watts @ 2 ohms. The 210 is rated for 175 watts. Does this affect what type of 15" I will need? Can I use a 300 watt 15" and the 175 watt 210 together? Thanks so much.