Copyright © 2021 Martin Audio Ltd.
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SX SERIES USER GUIDE V2.5
SX SERIES USER GUIDE
SXHF218
SXHF218
Introduction
The SXHF218 is an extremely powerful subwoofer capable of producing 148dB peak output at 1m. It is the ideal partner for Wavefront
Precision WPC and WPL arrays where maximum low frequency output is required as well as a standalone solution for premium permanent
installations such as nightclubs.
Its Hybrid® horn/reflex loading combines the acoustic efficiency and impact of bass horn technology with the low frequency extension of a
reflex design, enabling it to produce significantly higher output levels than a traditional reflex-loaded subwoofer. With an operating range of
32-150Hz + 3dB, it features dual long-excursion 18” (460mm)/4.5” (115mm) voice coil neodymium drivers, with water resistant cones
and triple roll surrounds.
The enclosure is constructed from multi-laminate plywood and coated with hardwearing textured black polyurea. A rigid perforated steel
grille protects the front of the enclosure, while interlocking skids protect the top and bottom surfaces and prevent movement when stacked.
The SXH218 can be powered by either a single channel of a Martin Audio iK42 4-channel amplifier, or a bridged pair if maximum output
is required. Its connector sockets are wired so that one four-core cable from the amplifier will power two SXH218’s. SXH218 settings are
determined by a pre-determined parameter set in Vu-Net when used in conjunction with iK42, or settings are available from the Martin
Audio website when used with alternative amplifiers.
By adding the input board cover accessory, the subwoofer is fully weather resistant and suitable for permanent outdoor usage.
Accessories
M10 eyebolts
HTKCT06
Transit cover
SXH218TC
Weather kit
WRKIT
Flying frame
WPLGRIDt
