Any experience with these Neodymium 15" bass speakers? They have an improved extended XMAX of 4.8 vs. the 3.9 of the original and are 8 ohm. The Sensitivity is almost 100 db rating and have a frequency response of 40-3700 hz. I just ordered one for my second Avatar cab. I have a Kappa Pro LFA Eminence speaker in the other cab and wanted something to compliment it in the mids area and still provide some good lows.