JBL SRX 718S 18? High Power Subwoofer

18" High Power Subwoofer
The SRX718S subwoofer’s compact design is equally at home as a small, high-performance satellite subwoofer system or as a building block for larger subwoofer arrays.
• 18 in., 2268H Differential Drive® woofer for extended low-frequency output.
• Large port area for reduced distortion.
• 20 mm threaded pole socket for solid, secure satellite speaker mounting.