I currently play through a GK 700rb 210. I love the sound but my church is soon going to be moving and we are moving a much bigger place. I've been thinking about getting an extra cab but I don't know cabs that would match well with the 210RBH. I'm probobly looking for a 15" or 12". looking for more lows. I really didn't like any of the GK 15" that I've played through. However, I am looking for something that sounds modern, thick... something that could support the low end for slap bass and fingerstyle rock, fusion, R & B, jazz. Any suggestions?