Just reinstalled the IsoAcoustics iso-200sub isolators under the JL's. Man, putting the subs on these and getting them off the suspended wood floor, it's like the subs gained a solid 3+ dB of output below 30 Hz, now easily pumping out very usable output below 20 Hz. I actually had to turn the gains down a touch. Apparently, the suspended wood floors soak up a lot of that low frequency energy. I listened to the Greyhound soundtrack (Tom Hanks movie) the other day with these subs, and there was plenty of deep bass, but not like now. Now it's really deep.
And of course, my "little" music girl, Charlie.