At this year’s ISE trade show in Amsterdam, Martin Audio has launched a new cardioid subwoofer, SXC118, as part of an overhaul of its subwoofer strategy.
Designed for touring sound and installations, the SXC118 is a compact, high performance cardioid subwoofer. It features an 18” (460mm) forward facing driver and a 14” (356mm) rear-facing driver, each driven independently by separate channels and DSP from an iK42 amplifier. Each driver has its own chamber with optimised bass reflex porting.
This arrangement produces a cardioid dispersion pattern which maximises the front radiation and reduces unwanted radiation behind the subwoofer. The recommended iK42 amplifier optimises the DSP parameters for front and rear drivers to maximise the rear rejection — from 21dB at 43Hz to 28dB at 75Hz. In front of the enclosure, the output from the two drivers is additive, giving an extra 2dB of output when compared with a conventional 1 x 18” subwoofer.
The enclosure is equipped with four grab handles and foam-backed perforated steel grilles to protect the front and rear drivers. It can be used individually, stacked or flown by means of threaded flying inserts
The SXC118 is an ideal partner for WPM line arrays or point source loudspeakers where low frequency pattern control is required. Interlocking skids prevent movement when stacked and a threaded plate in the top surface facilitates pole-mounting of up to four WPM enclosures or a single point source enclosure. With the weather kit accessory, the product can also be installed outdoors.