tonite we put my new SMD woofers into the Tahoe. Took the old BTL's out. They are still in perfect condition after a year and a half! Time for the test drive of the new SMD's though! 6600 Watts on each one! THere are 2 Rockford Fosgate T2500.1bd amps on each woofer (one per coil) and all my amps benched between 3250 and 3400watts each (1ohm, 14.4v) . Woofers are dual .7's and i am @ 15.5vdc so you do the math -