Wharfedale Delta X218 B Dual Chamber 2 x 18" 1600w RMS, 4 Ohm, Rhino rock finish

The Delta-X218B is a dual-chamber, dual 18-inch passive subwoofer rated at 1600 W continuous with up to 6400 W peak in parallel wiring mode. It uses two custom 18-inch woofers with 4-inch voice coils, delivering a frequency response of roughly 30 Hz to 1.5 kHz and up to 138 dB SPL.

A rear-panel switch allows selection between parallel (4 ohm) and discrete (8 ohm x2) wiring, with dual NL4 Speakon-compatible inputs. The cabinet is built from 18 mm birch plywood with a tough-tone paint finish and fitted with four handles for moving.