[quote name='stingrayPete1977' timestamp='1374071701' post='2144978']
I'm not sure what the exact models were but same room, same head, same bass and the difference was massive, it still remains the highest I have needed to put the output on my shuttle six and it was a tiny room. I thought maybe a 2x12 might be better than two 1x12s but the experts here say not.
[/quote]
I think I know what your talking about Pete. Normally with one of the Bands I play with I use 2 EBS CL 112's for practice and gigs and a Aguilar TH500, today I took along my GB212 neo xt as we have an outdoor gig on Sunday and thought I could do with the extra umph as most of our smaller gigs guitars and bass are never FOH .. anyway at practice same room, same volume the drummer turned to me after 2 songs and said ahh so that's what your you playing He could hear and feel it, seems the porting and and 2-12's stuck in the same box do have some magic.. or so it would seem.