I have searched around a bit and have not found any info on these (I didn't try as hard as I could have I won't lie) But are these subwoofers worth it? I am currently running with a 150 watt 10" JBL subwoofer, which actually in my small 12x16 room sounds real good, I have Polk monitor 60 fronts, monitor 30 rears and the matched polk center channel with a Denon receiver. I am not an audiophile but I wouldn't mind some bass that will hurt my chest from time to time. They offer a 240 watt 15" subwoofer that looks really interesting among a few others. I have no plans of doing component amps or anything to that effect, I just want some mind numbing bass (when I feel like reaching behind the unit to crank it up.) I keep the current JBL at half volume on the unit and at +/- 0 on the receiver for normal TV and Movie viewing, so I need a larger sub that will remain subtle for video sound unless I crank it. I could obviously see how a 15" subwoofer might be overpowering and leave a gap in the higher bass freq. range because of the sheer size. Thanks to the sound pros for reading, and any advice you may have will be appreciated.