China Mega Bass Multifunction PRO Audio Powered Wooden Passive PA Subwoofer Loud Sound Professional Speaker S18+ - China Professional Speaker and Speaker price
Cerwin Vega INT118SV2 18 in Passive PA Subwoofer | PSSL ProSound and Stage Lighting
JBL JRX 218S, passive subwoofer 18", 350Watt, 4Ohm | MUSIC STORE professional
Electro Voice ELX118 Passive PA subwoofer 45.72 cm 18 inch 400 W 1 pc(s) | Conrad.com
Amazon.com: (2) Peavey SP 118 Pro Audio DJ Passive 2400W 18" PA Sub Subwoofer Package New : Musical Instruments
LD Systems LDS-ESUB18G3 STINGER Passive Subwoofer | IDJNOW
Yamaha SW118V 18" 600 Watts PA Subwoofer SW118V - Adorama
Dynacord A 118 Passive PA subwoofer 45 cm 18 inch 800 W 1 pc(s) | Conrad.com
DAP Audio DRX-10B Passive PA subwoofer 25 cm 10 inch 250 W 1 pc(s) | Conrad.com
OFFLINE Peavey Dual 18 Inch Passive PA Subwoofer at Gear4music
JBL PRX418S Passive, Unpowered PA Subwoofer Speaker (1600 Watts, 1x18")
Adding a Subwoofer to Your PA
OFFLINE Peavey SP 118BX 18 Inch Passive PA Subwoofer at Gear4music
Passive/Unpowered PA Subwoofers | zZounds
Amazon.com: LyxPro 10" Inch Passive DJ PA Speaker System XLR,1/4,Speakon, Connections Daisy Chain Compatible, 8 Ohm, Lightweight, Stand Mountable , : Musical Instruments
LD Systems STINGER SUB 15 G3 | PA-Subwoofer | LD Systems