Amazon.com: Sound Barrier MEGASSUS SBL18XN 3600 Watts Raw 18" Sub woofer Speaker Component Driver with 4 inch Voice Coil and Cast Aluminum Basket Pro Audio PA Cabinets - High Handling Power Heavy
Amazon.com: Rockville 2 RVP18W8 2400w 18" Pro Subwoofers 8-Ohm Raw Sub Woofers 90 Oz Magnets : Electronics
Amazon.com: Alphasonik 18" Flagship Series 3000 Watts Raw Sub Woofer Speaker Cast Aluminum Basket Driver for Pro Audio PA DJ Cabinets Subwoofer with High Handling Power Extremely Clear and Loud - FW1832 :
Amazon.com: CELESTION FTR184080FD FTR Series 18-Inch 1000-Watt Subwoofer, Black : Musical Instruments
Amazon.com: Seismic Audio - 18" Raw Subwoofers/Woofers/Speakers - PA DJ Pro Audio Replacement Sub - 750 Watts RMS - 240 oz Magnet - 8 Ohms - 4" Voice Coil : Musical Instruments
Amazon.com: 2 x 15 Subwoofer 2000W Single 4 Ohm Bass Pro Car Audio American Bass DX-15 : Electronics
Amazon.com: Sound Town 18” 1000W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-18500A) : Musical Instruments
Amazon.com: Harmony Audio HA-ML182 Monolith 18" Car Stereo Competition SPL Sub 3500W Dual 2 Ohm Subwoofer : Electronics
Audiopipe 18" Woofer 3400 Watts Max 2 Ohm DVC
Amazon.com: Skar Audio SDR-18 D4 18" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics