Hey guys, i've heard a couple good things about these cabs on here, so just looking for a bit more detail on them. I found a cheap one around here in Aus and am really interested in it. Just one first thing, does the B in the name mean anything? (I usually just see 1516). It's a PH and not RR version, but I don't mind for this price. So yeah, what sort of sound would i be looking at? I suppose Mesa's normal clear and deep tone. Are these things punchy? Tight? Big low end? etc. I'l also be getting a Mesa 600 or 400+ (If used) in the not too distant future, think these two would make a good pair? Cheers. EDIT: Oh, also. it sais he's replaced the 10" with an Eminence Delta 10A, good or bad?