18" 6000W Stereo PA/DJ/Club/Bar Powered Subwoofer with Bluetooth/USB/LINE - Walmart.com
Professional PA System with 15-inch Speakers, 18-inch Subwoofers, Amplifier – Sound Town Inc
Sound Town METIS Series 2000 Watts 18" Active Powered Subwoofer with 2 Speaker Outputs, DJ PA Pro Audio Sub with 4 inch Voice Coil (METIS-18SPW2.1) : Musical Instruments
18 Inch High Power Subwoofer Bass PA Loudspeaker China Speaker Manufacturer - China 18 Inch Loudspeaker and PA Subwoofer price | Made-in-China.com
Rockville RBG18S 18" 2000 Watt Active Powered PA Subwoofer w/DSP+Limiter Pro/DJ