18-inch subwoofer system with 600 watts continuous, 2,400 watt peak power handling. Delivers 126 dB SPL 1 w/1 m (132 dB peaks 1 w/1 m) at full power EVX-180B 4-inch voice coil driver for maximum LF reproduction power with minimum enclosure volume. Delivers solid bass response to 36 Hz Enclosure is the same width as QRx115 for easy stacking and transportation. Includes 1-3/8-inch stand mount and 30-inch steel pole for use with full range cabinets without the need for extra mounting stands. Enclosure is built from 13-ply, void-free, grain-oriented birch plywood finished with Futura, a sprayed-on polyurethane finish that is very rugged. Available in black or white finishes.

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