[Darren]

Oh, I'm tempted but the low XMAX and super high Fs keep me satisfied with my choice of driver. I figure my 4 RL-P 15's will have more displacement than 4 of those 18's. If I had the option beforehand though it would have been a huge decision... $~350 for 4 18" drivers or the $1000 I spent on the 15's... I'm very happy with my choice though. They will give me more than I could ever need.