Since the Klipsch RP-8000 is in discussion in another thread (5 speaker comparison),I thought I would bump the above post comparing the JBL 590 to the RP-8000!
Given that the JBL 590 often sell for $1000/pr, they make a compelling option for anyone trying to get great sound on a budget. I wouldn't be very quick to assume they would be a step down from any of the 5 speakers mentioned! It would be great if James could have included the 590 in his measurements, but I doubt we will see that.
Also, consider if you are in a smaller room and using a sub, the 530's will presumably be on sale around $300/pr periodically! They are absolutely not wimpy bookshelf speakers and won't give up much to their big (as in F'ing huge!) brothers unless you are running at high SPL, w/o a sub, and/or in a large room!