The SXHF218 is an extremely powerful subwoofer capable of producing 148dB peak output at 1m. It is essentially the flown version of SXH218 and is the ideal partner for Wavefront Precision WPL arrays where maximum low frequency output is required.
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 hard wearing textured black polyurea. A ridgid perforated steel grille protects the front of the enclosure, while integral flying hardware alongside use of the WPL GRIDT means it can be incorporated at the top of a WPL array, or more commonly flown as a separate array alongside, again using the WPL GRIDT. Like the ground stack version, a combination of forward and rear facing enclosures can be configured with specific directional properties. By adding an outrigger kit, SXHF218’s can also be ground stacked beneath WPL enclosures to form a powerful ground based system.
The SXHF218 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 subwoofers. SXHF218 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 outdoor usage.
TYPE Hybrid® horn/reflex subwoofer
FREQUENCY RESPONSE 32Hz – 150Hz ±3dB, -10dB @ 27Hz
DRIVER 2 x 18” (460mm)/4.5” (115mm) voice coil, long excursion, neodymium magnet, waterproof cone
RATED POWER 3000W AES, 12000W peak
RECOMMENDED AMPLIFIER iKON iK42
SENSITIVITY 107dB
MAXIMUM SPL 148dB peak
NOMINAL IMPEDANCE 4Ohm
DISPERSION (-6DB) Omnidirectional/or Cardioid (paired)
ENCLOSURE Multi laminate birch/poplar ply
FINISH Textured Black Polyurea
GRILLE Black perforated steel
CONNECTORS 2 x NL4
PIN CONNECTIONS (INPUT) Input +1/-1
PINS CONNECTIONS (LINK) Refer to SXHF218 datasheet or Input panel diagram for linking options
FITTINGS
Two skids on base, with mating channels on top
Four rear mounted 100mm castors
6 x bar handles, 3 on each side
4 x fittings for optional transit cover
DIMENSIONS (INCL SKIDS)
(W) 1148mm x (H) 604mm x (D) 1027mm (1155mm including castors)
WEIGHT 138kg , with castors 146.5kg castors)
WEIGHT 138kg (304lbs), with castors 146.5kg (323lbs)
