I have a Trace Elliot AH 300 into a homebuilt 2 12 with emeince delta 12 LF speakers. I have not really been feeling my tone latley, when I crank it up it starts to get nasty. I don't feel like I get enough out of those 12's. Should I got for 15's or 10's and a 15, or can a stand alone 15 get the job done? I want to know how output of the traynor YBA 200 and the Trace differ? What are some tube amps I should watch out for? I am not sure if it is strictly the amp though the cab or the cab itself.