If I were to upgrade from the 2 Pi studio to the 3 Pi Pro, then how much would the sound change? I know the JBL 2206 has a flux ring, so distortion will much lower then the Alpha 10. But aside from that, how does the sonic signature of the 3 Pi Pro compare to the 2 Pi Studio? Also, how SET friendly is the JBL 2206? I have the Decware Zen amp with 1.8 watts RMS. I also have a Peavey 500; both work well with the 2 Pi Studios. And finally, while I'm considering the cost of upgrading, would it be better (from a performance standpoint in a 14ft x 14ft room with listening levels rarely reaching over 100db) to get the larger 4 Pi Pro? Thanks,

-Matt