JL Audio 10W6v3-D4 with XD600/1v2 600 Watt Subwoofer Kit: 10W6v3-D4-XD600-1
BOSS Audio Systems BE8D Elite Series 8 Inch Car Audio Subwoofer - 600 Watts Max, Dual 4 Ohm Voice Coil, For Truck Boxes and Enclosures, Hook Up To Amplifier
STRATO-8 - 1200 Watt 8 Inch Car Subwoofer - CT Sounds – CT SOUNDS
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A,Black : Electronics
Kicker Comp 43DC122 600 Watt 12 inch Dual Subwoofer with Enclosure
Lanzar MAXP64 6.5" 600 Watt Subwoofer
6.5 in. 600-Watt Car Mid Bass MidRange Woofer Audio Speakers 8 Ohm Black 2 x PDMR6 - The Home Depot
Pyle 6.5 in. 600-Watt Car Audio Subwoofers Subs Power Woofers 4 Ohm 2 x WX65X - The Home Depot
Vandal 8 – 600 WATT 8 inch Subwoofer – Rogue Car Audio
American Bass 10" Car Audio Subwoofer 600W White 4 Ohm DVC Pro XO-1044 - Walmart.com