I've owned Dunlavy SC-IIIs for about 3 years now and a key feature of their design is time/phase coherency.
I've tried a number of different speakers over the past 3 years but keep coming back to the Dunlavys. Whether or not it's the time/phase feature of their design that appeals to me over everything else, I cannot say.
Speakers which have come and gone in the last 3 years include Quad ESL57s, Merlin Music VSM BME, Sonus Faber Cremona Auditor M, Dali Mentor 6, Klipsch Heresy, Klipsch Khorns, Tyler Acoustic D2, and I'm sure a couple of others that escape me right now.
I just sold the Klipshorns this weekend and the Dunlavys are back in their rightful place.
I think my next adventure will be to try a set of the PureAudioProject speakers with a horn driver. Anyone have any thoughts on the PAP?