Two Digital Designs DDA-W 6.5 drivers
Four Digital Designs DDA -T28
Two Digital Designs DDA-X02 x-overs
First I don't have ton of experience with a lot of different components but these where a direct swap out for Dynaudio esotec 222. You may ask why swap out for those bad *** Dynaudio. And I agree that the Dynaudio's are probably the best car audio speakers that I've ever heard but they where limited in output and that's reason for swap.
Install was pretty basic with two tweeters in the dash and two in the doors. We went with 4 tweeters due to the distance from driver to dash was about 3 feet and separation was noticeable. We made driver mounts and then sound deaden them to the doors so it was one solid piece. And since these components as a whole handle more power then the Dynaudio's I right away and bridged the 4 channel orion 800.4 to run the front to back like a left to right to give them as much power as possible.
So first impressions with listening with the xover tweeter on 4 ohms out of the 4/8ohms option and tweeters in parallel we where happy with output but already they where not as natural sounding as the dynaudio so already a little disappointed. BUT WAIT Realizing that bridging the amp also makes makes the signal less clean we wired it like we had it with the dynaudio's just using the front two channels. And OMG what a difference in the sound quality from the amp. The less power was apparent with less midbass pop but the volume was still good and the clearity was largely improved. So now I'm getting happier.
Then last we played with x-over by trying the 4/8ohms tweeter option and 8ohms sounded better and for what ever reason the tweeters wired in series rather then parallel sounded better also.
Final impression is we're very impressed. Very clean and very loud and in my opinion very close to the Dynaudio esotec 222. Midrange and midbass hugely improved and very smooth tweeters, not harsh at all once tuned to liking. Over all for the money extremely happy sound quality coming from Dynaudio's.
Next step is to get more "clean" power to them because it was apparent that they liked the more power.