Unpowered Subwoofers
JBL Professional SRX818S Portable Passive Subwoofer
JBL JRX218S 18-Inch Compact Passive Subwoofer - Sound Productions
JBL Professional SRX818S Portable Passive Subwoofer
JBL SRX818S 18 Passive Subwoofer System
Single Black JBL SRX928S - Dual 18-inch Powered Subwoofer at Rs
JBL SRX828S 18 Dual Passive Subwoofer System
JBL SRX-828S 18 Dual Passive Subwoofer Loudspeaker - Sound
JBL SRX728S Dual 18-inch High Power 2-Way Passive Subwoofer
JBL STX828S Dual 18 High Power Passive Subwoofer Speakers (2