I can't speak specifically for the D15s, but I think ProAcs rock... I picked up a pair of Response 2s a dozen or so years ago, but relegated those to a study and "upgraded" to ESLs. I got captured by the transparency and speed of 'stats. After playing around for years in the ESL vein, however, I ultimately realized that I really missed the way the ProAcs convey the slam of rock music. The ESLs were too... ..."polite." So, now I'm the happy owner of a pair of Response 2s in the study (biamped off a pair of ARC D240 IIs) and a pair of Response 3.8s in the main rig (biamped off a pair of ARC VT100 IIIs). "Safe European Home" sounds the way it's supposed to again.
