lol my single VVX-12 is off exactly 400w, too. It shakes my roof and windshields and side mirrors a little bit on the lows in a ported box tuned to 33Hz. Going to get a second one in a box tuned to 30Hz and see what happensJust had my neighbor 'demo' his Skar VVX-12 for me yesterday afternoon. It was in a little Scion 2-dr hatchback, rear facing, in a tiny sealed .69 cubes, and only being pushed with about 400W. He ran thru a bunch of different music, from Opus to Bass Mechanic, and it performed flawlessly with nice, clean lows...was prolly hitting low 130's even receiving less than 1/2 of the watts it could accept.I bought 2 of them for my own install.