Martin Audio WS218X

Differential Dispersion Systems

Martin Audio’s Differential Dispersion™ systems deliver more consistent frequency response and SPL’s over the audience than from systems with fixed X° x Y° dispersion.

DD12 - Combining onboard networking, DSP and Class D amplification with state-of-the-art transducers, the compact DD12 sets a new benchmark for professional, powered two-way loudspeaker systems in terms of fidelity, output capability and coverage consistency. Its compact, multi-angle enclosure facilitates vertical or horizontal orientation, as well as use as a stage monitor.

DD6 - The ultra-compact DD6 is a passive two-way, multi-purpose loudspeaker system designed for premium applications which require ‘on-the-fly’ flexibility. Its high frequency horn can be easily rotated for horizontal or vertical use in a quick, tool free operation. Up to three DD6’s can be driven by the PSX self-powered companion subwoofer.

W8VDQ - Combines line array and differential dispersion technologies within a single enclosure — a unique solution to the requirement of even coverage over wide angles and medium throw distances from a single element. The W8VDQ has wide short-throw horizontal dispersion of 120°, reducing to 100° as the throw increases.

Martin Audio WS218X, Direct radiating

* 2x18" ground sub

* Dual-driver vented sub-bass system

The WS218X is a high performance sub-bass system designed for use with large scale Wavefront and Blackline systems, in both touring and install applications. It features twin, 1000 watt 18" (460mm) drive units with magnet structure and suspension engineered for maximum linear excursion.

The birch ply cabinet is fitted with six pocket handles and four 4" (100mm) castors for easy deployment. It features large area porting to reduce air noise.

WS218X subwoofers are designed to be powered by Martin Audio MA12K power amplifiers.


Dual, direct radiating long excursion 18" (460mm) drivers

High temperature 4" (100mm) voice coils

High power – 138dB continuous, 144dB peak

Fitted with handles and castors


Medium/large scale touring sytems

Theatre sound systems

Club sound reinforcement

Special effects sub-bass

Technical Specification

TYPE Dual-driver vented sub-bass system

FREQUENCY RESPONSE (1) 35Hz-150Hz ± 3dB,

-10dB @ 28Hz

DRIVERS 2 x 18" (460mm)/4" (100mm) voice coil, ultra- long excursion, water resistant cone

RATED POWER (2) 2000W AES, 8000W peak


SENSITIVITY (3) 105dB (half space)

MAXIMUM SPL (calculated @ 1m) 138dB continuous,

144dB peak (half space)


CROSSOVER 70Hz-150Hz, via DX1.5 or DX2 controller

ENCLOSURE 320 litre, multi-laminate birch ply

FINISH Textured black paint

PROTECTIVE GRILLE Black perforated steel

CONNECTORS 2 x Neutrik NL8

PIN CONNECTIONS LF1: 1+,1- & 2+,2-

LF2: 3+,3- & 4+,4-

FITTINGS 4 x 4" (100mm) castors

6 x pocket handles

2 x front lid fittings

DIMENSIONS (inc. wheels) (W) 1066mm x (H) 561mm x (D) 780mm(911mm)

(W) 42ins x (H) 22.1ins x (D) 30.7ins (35.9ins)

WEIGHT 89kg (196.2lbs)

WS18X, Direct radiating

* 18" ground sub

* 1000 watt vented sub-bass system