Yes I have the Definitions in San Francisco. I also highly recommend Atmasphere's advice. The best bass I've heard in an efficient speaker is the GR Research Super V's. There are lots of Zu owners around the country if you call Zu I bet they can help. Another option would be the Druid mkV or newer Souls with your subs.
What speakers work best with electronic music?
I've been demoing lots of speakers lately, especially those in the Dynaudio & Focal lines. I personally own the Focus 160's. I listen to electronic music almost exclusively, with a little jazz & classical. I'm starting to find that I may just be looking for these speakers to do something they can't. They can play Jazz, Pop & Classical like I've never heard before in my life, but they just leave me wanting when it comes to electronic music. And it's understandable too, there are times where a single electronic track can have 60 different instruments going at once, sometimes even more. Only thing currently in my system that I wouldn't part with is my stereo F113's. Which speakers under $15,000 (used or new) should I be looking at it that will be able reproduce the complicated nature of a lot of electronic music with ease; something that just has jaw-dropping dynamic range?