100W Mono-Channel Class D Subwoofer Amplifier + 8" 150W Pro Series In-Wall Home Theater Subwoofer | Outdoor Speaker Depot
100W Wooden High Power Subwoofer for 6.5 Inch Home Theater SoundBox System | eBay
Ghxamp 6.5 inch Subwoofer Speaker 4ohm 100W Woofer LoudSpeaker Deep Bass 30 Core Long Stroke Rubber Edge 1PC
6.5 Inch 100W High Performance Active Heavy Subwoofer Speaker Arbitrary Connection of Active Speakers - China Speaker and Subwoofer price | Made-in-China.com
Polk Audio Monitor XT12 12" 100W Subwoofer 300414-01-00-101 B&H