Sonicelectronix.com now shows to be a authorized dealer for PowerBass. They dont have those subs yet, but its a start.
http://www.sonicelectronix.com/powerbass-car-audio.html
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1998 S10 EXT.CAB
JVC KD-ADV49 HEAD UNIT
INFINITY KAPPA 60.9 COMPONENTS (DOORS)
INFINITY KAPPA 462.9 PLATES (DASH)
KENWOOD EXCELON 2 CHANNEL AMP
2x 12" KICKER CVR, SEALED BOX
LOGIC SOUNDLAB CN30R CROSSOVER
CAP, ETC.
KD-ADV49 SUCKS, GREAT SOUND, POOR CONTROLS AND PROCESSING SPEED. TERRIBLE TO ADJUST ANYTHING WHILE DRIVING. DO NOT BUY