Wasnex, good info. I went looking to see if their ar any similar woofers to the EV one. Couldn't find one that was real close. The Eminence Sigma Pro 18 did have a rising response to around 1.5khz. efficiency is lower but xmax is better than the EV. I'll have to play with some cab modeling and see what I come up with. I am curious about what amp Nebadon2000 was planning to use. There are a number of ways to skin the low frequency cat.