Amazon.com: Alphasonik 15" Flagship Series 1400 Watts Raw Sub Woofer Speaker Cast Aluminum Basket Driver for Pro Audio PA DJ Cabinets Subwoofer with High Handling Power Extremely Clear and Loud - FW1532 :
Amazon.com: DS18 HOOL-X15.2DSPL Hooligan X 15 Inch SPL Car Audio Subwoofer 4000 Watts Rms 4" Dual Voice Coil 2-Ohm DVC 2+2 Ohm (1 Speaker) : Electronics
Amazon.com: New American Bass Xd1522 15 Inch Dual 2 Ohm Subwoofer Car Audio Sub 15" : Electronics
Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater : Electronics
Amazon.com: Gravity 1x 15 Inch 2400 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power 15 in. Sub - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance Car Show : Electronics
Amazon.com: American Bass XFL1522 15 SUBWOOFER AMERICAN BASS DUAL 2 OHM VOICE COILS 200 OZ MAGNET : Electronics
Amazon.com: Skar Audio EVL-15 D2 15" 2500 Watt Max Power Dual 2 Ohm Car Subwoofer : Electronics
Amazon.com: Gravity 15 Inch 1600 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power (Single) : Electronics
Amazon.com: AudioPipe TXX-BDC4-15D 15 Inch 2,800 Watt High Performance Powerful Dual 2 Ohm DVC Vehicle Car Audio Subwoofer Speaker System, Black : Electronics
Amazon.com: Pair of Gravity 15 Inches Car Audio Subwoofer 3200 Watts Peak Power (1600x2) RMS Power 80 Watts Each with Dual Voice Configuration 4 Ohm Power (2 Woofers) : Electronics
Amazon.com: Harmony Audio HA-ML152 Monolith 15" Car Stereo Competition SPL Sub 3200W Dual 2 Ohm Subwoofer : Electronics