I am about to get my first rig and the one thing that I have goin for me is that I want to go all Ampeg. For right now I want to get one cab and a head and I plan on eventually hookin up another cab. The first question I have is whether I should go with 10's or a 15. I have heard that 15's have a lower or warmer sound. Someone please make the difference clear. If it helps I play very bass heavy music like reggae so I want be able to get as deep and low as I can. I think that it would make sense to get a 8ohm cab because of my plan to later set up another cab. Correct me if that is wrong. My next question is what head I should go for. Hopefuuly some of you guys have played with Ampegs before and can help me on this. I have Ampeg's pamphlet with all their gear on it. I need to know the difference between the B series heads and the Svt's. It looks to me like I need to go with the more costly head.