I'm no industry insider, but Definitive Technology which was also started by Sandy Gross. Used to get all the great, awesome reviews, then Mr. Gross started Golden Ear. Def Tech, suddenly was yesterday's forgotten memory. You don't hear anything about Def Tech anymore, Sound & Vision and Absolute Sound always had ads running in the first pages of each magazine, now nothing. Something doesn't seem quite right there.
FYI, I switched from Magnepan 3.6s to JBL's 4367's, after Dallas Justice's posts, piqued my interest. The imaging/soundstage are awesome, as is the dynamics, and bass. Mine are dealer demo's so I paid $10k. instead of $15k list. I have been an audiophile for a long time and have heard many speakers many times their price, I would match them against any of those uber priced speakers, except the JBL M2's.
These are full range also and can play very loud, with no thermal compression, to control the power of the 15" woofer. They use extensive cabinet bracing, 135lbs, ugh. I think their ability to play very loud, without compression helps in their dynamics. As someone told me at AXPONA told me this year, "other type of speakers can do dynamics, just not as well as horn speakers"
Sandy Gross says all domed tweeters ring (I think YG Acoustics would disagree with their latest), the 4367's use annular mylar tweets and two of them for each speaker. So no ringing with them, and they have a very smooth frequency response chart.