IMO the DLS is a better setup from the few that I have heard, The DLS UP6 which is under the iridium sounded better to me the the Supremo. Both sets are nice, but the DLS seem to be a little cheaper and have one of the best tweeters I have ever heard, and they werent even the Iridium tweeters, it was the step down. All the DLS I heave auditioned, which is about 3 sets. Had amazing midbass and a tweeter that blended wonderfully and were not harsh or over analytical like some high end setups. You cant go wrong with either, Its best to just audition for yourself. I was going to buy Hertz or Rainbow CMX until I heard the DLS. My brother has a set of Morels he runs active and I like them a lot too, but they tend to be a little on the high side for the value.
http://www.dls.se/files/597/2/UP6_test.pdf. This is a good writeup of the DLS UP6 vs. many other high end sets including the Morel Elate set