The Response 2's have incredible bass, particularly when placed on those incredibly expensive Target stands. I have played them in 2 different rooms--one a huge living room that is 20feet x 30 feet and drove them with the OCM amp with Classe 30 pre-amp and they sounded--still sound--incredible.
My brother would always come over (he's a violinist and a dentist--I'm a cellist) and play a Lindsay Buckingham album with incredible acoustic guitar picking. He'd freak out, swearing that the guitar was just hanging there in mid-air. He'd sit there for hours, much to his wifes dismay, totally transfixed by whatever he put on--be it rock, classical-(everything sounds great, but chamber music is ungodly--sounds like the quartet or quintet came over to play).Other friends would come by and ask--"Where are you hiding the subwoofer"? I got him ProAc Supertablettes years ago--he likes them alot, but they aren't in the same league. Of course, the Supertablettes cost a heckuva lot less and his don't have that beautiful rosewood finish.
I don't know if the speakers are just plain great, or that the combination of them sitting on the Target stands with Blu-Tak made them ethereal.