Back to the Dakioms, I had similar results as Tvad. Soe things it did good, improving the sound. But other things it didn't; the recessed midrange and TOO much softening of the sound wasn't as good in my system as the benefits they gave.
One of my issues may have been compatability. I used the RCA Dakiom's with 2 different modified CD players. There may have been an issue with the capacitance added by the Dakiom's.
I used them with a non-mod'd, but older, player. It did sound better overall, but I still noticed the recessed mid's and softness - just to a lesser degree.
I also liked the Bybee's, and even better, Triphasers. But they are both more expensive. I think the Dakiom's ARE worth a try, and they may find a home somewhere in your system. I ended up using them in a "video" system that is only running 2-channel right now. There, the things they do well outweigh the things they don't.
One extra point: hats of to Mr. Kim at Dakiom. He posted my letter there, even though it was a mixed review. That is honest, and I would not hesitae doing business with him at all. He was very communicative and helpful in trying to figure out the issues using them in my system. A true gentleman!
My 2 cents.....
Todd