the last review on Crutchfield says, "Yes, they are an engineering marvel with an architecture that is spot on at any price. Yes, they are an advanced phase dependent design. Yes, JBL sold thousands of these babies out of phase because they overachieved, and not by a smidgen either. The difference depending on phase is absurd. You've just gotta swap "polarity" at the terminals to find out. You may be rewarded with improvement that is total.....coloration eliminated (and I mean COMPLETELY), jaw dropping texture across the entire spectrum, bass accuracy, imaging, vocal presence. It's all there."