Nice, but at over $100 each, they'll be great for 2-ways and MTM's but a large line source , say 10 per side, that's a prohibative cost. With the skyrocketing cost of neodymium in China, driver mfgrs are going back to other magnet types. Also, eliminating the copper plating of the back and front plates will lower the costs - if I built a LA, I would not care if copper was showing on the rear of the baffle. Just my 1.5 cents observation. What is the Xmax?