Indeed. I can get precisely that effect with my Lockwoods, when playing suitable material, and that's with a 30W Class A valve amp! :eyebrows:
30W Pure Class A into 95db 15" drivers in a relatively small room like mine, creates some serious SPLs... I was playing Rammstein's new album last night at 'silly' levels and it felt like I was being pinned to the wall and pummelled into oblivion by David Haye!
The Lockwoods are much smaller than those JBLs, of course, (44" high, 28" wide and 18" deep) but then so is my room fairly small... The speaker/room interaction is therefore such that a similar effect is achieved as that likely obtained by the JBLs when used in the humungous-sized room they deserve :)
Having been spoiled by efficient 15" drivers, I honestly now couldn't go back to anything smaller, although I'd imagine that your Ushers also pack a fairly hefty punch.
Marco.
