I've got one Kicker 15" Solobaric L7 in a sealed enclosure. It's getting 700 watts, and I LOVE it! Good, clean and solid It has taken a beating for a bit now and it just asks for more.
2005 Ford F150 SuperCab FX4
1964 Chevrolet Impala SS
1998 CSVT: 354HP/328TQ @ 10 psi, now gone