I'll second the Energy V2.4i's. With the money you save you can add a very nice sub and achieve truly great, full range sound. I use mine with a Talon ROC 2002.
If you choose to spend more, the Vienna Mahler is an outstanding choice and would (I bet) mate well with the DNA500.
If you choose to spend more, the Vienna Mahler is an outstanding choice and would (I bet) mate well with the DNA500.