Martin Audio Debuts ASX Active Installation Subwoofer

Jun 25, 2009 2:28 PM


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photo of Martin Audio ASX Grille

Martin Audio ASX subwoofer

At InfoComm 2009, Martin Audio displayed its new ASX floor-mounted active installation subwoofer, which the company states is "fully capable of producing the highest SPL ever from a single low frequency enclosure housing a single drive unit."

The ASX enclosure—46.85x23.62x46.85 inches (WxHxD)—houses a patented 21-inch transducer, Class-D amplifier with 8.5kW peak power, and full DSP for efficient low frequency sound reproduction.

Combining the transducer, amplifier and DSP doubles the output capability of a conventionally driven loudspeaker driver of the same size. When incorporated into a Martin Audio Hybrid horn design, the complete system promises 152dB peak output (measured) from a single enclosure. In addition, Martin Audio’s adaptive control loop technology is said to maintain linearity up to the maximum output level and power compression is virtually eliminated. The dynamic, low distortion sonic signature of the ASX subwoofer is designed for premium club installations, stadiums, and for special effects in theme parks.

Key features include a Hybrid large folded horn and ported design (-3 dB @ 30 Hz); a single 21-inch (530mm)/6-inch (150mm) voice coil driver with 2.4-inch (60mm) peak-to-peak excursion; a switched mode power supply with PFC (Power Factor Correction) and global mains voltage operation; onboard DSP providing delay, EQ and filtering as well as amplifier and driver excursion limiting; and a PC based software application for parameter configuration.

For more information, contact Rob Hofkamp, Martin Audio's Director North American Operations, at 519/747.5853 and, or visit

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