Subwoofer Specific, Digital Designs, Redline Subwoofer – Atrend USA
2) DD AUDIO SW08-D2 8" WOOFERS 600W DUAL 2-OHM CAR SUBWOOFERS BASS SPEAKERS NEW | eBay
DD Audio - "Overall Digital Designs has developed a winner of a pre-built sub here." Read the full review by Australian Magazine "In Car Entertainment". Read now: http://goo.gl/cXcG6h | Facebook
Digital Designs DD Audio Z08 8" Subwoofer – South East Car Audio
Digital Designs DD LE-M08d
DIGITAL DESIGNS SW2508ESP $2,999.00 TT - TRIPLE R ELECTRONICS LTD
DD AUDIO SW08-D2 8" SUB WOOFER 600W DUAL 2-OHM CAR SUBWOOFER BASS SPEAKER NEW | eBay
2508 Power Tuned - Subwoofer - DD Audio
DD Audio SL600 Slim Line 10" - 600w RMS Car Audio Subwoofer
DD Audio Digital Designs 710d-D2 10" Dual 2-Ohm 3600W Subwoofer
DD Audio REDLINE RLX4 - 45w 4" Coaxial Speakers
DD AUDIO 608d-D4 8" CAR SUB WOOFER 1800W DUAL 4-OHM SUBWOOFER BASS SPEAKER NEW | eBay
DD 608 Redline 8" subwoofer - Up close and personal - YouTube