Martin Audio Releases Two New Cardioid Subwoofers

Martin Audio SXCF118Martin Audio has announced the release of two new compact cardioid subwoofers, the SXCF118 and the SXC115 — both designed for live sound reinforcement and fixed installations.

The SXCF118 is a flyable version of the SXC118 released last year and has been purpose-designed to accompany the WPS optimized line array system, while the ground stack SXC115 is set to partner WPM. The SXCF118 combines maximum low-frequency output with exceptional pattern control. It features an 18″ (460-millimeter) forward-facing driver and a 14″ (356-millimeter) rear-facing driver, each driven independently by separate amplifier channels and DSP. Each driver has its own chamber with optimized bass reflex porting.

This arrangement produces a cardioid dispersion pattern that maximizes the front radiation while reducing unwanted radiation behind the subwoofer. The recommended iK42 amplifier optimizes the DSP parameters for front and rear drivers to maximize the rear rejection — from 21dB at 43Hz to 28dB at 75Hz. This keeps low frequencies away from stages and walls as well as reduces reverberant energy in the room— improving low-frequency response accuracy and impact. In front of the enclosure, the output from the two drivers is additive, giving an extra 2dB of output when compared with a conventional 18” subwoofer.

The enclosure is constructed from tour-grade plywood and finished with a hard-wearing textured polyurea coating. It is equipped with four grab handles, while foam-backed perforated steel grilles protect the front and rear drivers. Integral flying hardware, coupled with the WPSGRIDT touring flying frame, allows the SXHF118 to be incorporated at the top of a WPS array, or flown as a separate array alongside.

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The SXC115 follows similar principles and contains a 15″ (380-millimeter) front-facing driver and 12” (300-millimeter) rear-facing driver, each driven, again, independently by separate amplifier channels and DSP. Each driver, similarly, has its own chamber with optimized bass reflex porting. In front of the enclosure, the output from the two drivers is additive, giving an extra 1dB of output when compared with a conventional 15” subwoofer and 21dB at 43Hz of rear rejection. It is an accompaniment to WPM or indeed with a pole mount for Martin Audio point source loudspeakers.

Shipping for SXCF118 will begin in May with the SXC115 in June. The SXCF118 is here and the SXC115 is here.