I hope this thread is in the right forum. What about the JBL 2226? It is very expensive. It looks like the frequency response falls off after about 1000hz, although it still may be acceptable up to 3K. It is a low-frequency driver, or at least it looks that way. 7.6mm Xmax 4" voice coil 15-lb magnet assembly Maximum excursion before damage......40mm!!! Anybody have experience with these monsters?