Martin Audio ASX features, applications, Hybrid horn, Ultra-HighPerformance Active Subwoofer

ASX

Ultra-High Performance Active Subwoofer

features

✷Ultra-efficient, with 152dB @ 1m half space maximum output

✷Hybrid® large folded horn and ported design, -3dB @ 30Hz

✷Single 21" (530mm)/6" (150mm) voice coil driver with 2.4" (60mm) peak-to-peak excursion

✷DSP-based, adaptive control loop technology maintains linearity up to maximum output level. Power compression virtually non-existent

✷Dedicated Class D amplifier with 8.5kW peak power

✷Switched mode power supply with PFC (Power Factor Correction) and global mains voltage operation

✷DSP on board providing delay, EQ and filtering as well as amplifier and driver excursion limiting

✷PC based software application for parameter configuration

applications

✷Premium club installations

✷Stadium installations

✷Theme park special effects

Hybrid® horn

Martin Audio’s trademark Hybrid® horn design marries the very high efficiency of a large folded horn with the low frequency extension of a bass reflex enclosure. With a path length of 2.13 metres (7ft), the horn dominates the output down to 40Hz. Below this frequency the reflex ports take over, extending output to -3dB @ 30Hz. The Hybrid® design maximises both the efficiency and bandwidth within the practical limits of enclosure size and has the fast transient performance long associated with Martin Audio bass horns.

The chamber housing the 21" (530mm) transducer is ported to the front of the enclosure, with special attention given to the cross-section profile of the ports to equalise the air

pressure at the port entry and exit and reduce the air velocity at the inner and outer port edges to reduce air noise. The port profile also minimises the acoustic resistance to maximise the output from the ports.

Extensive bracing is employed throughout the 18mm birch- ply enclosure and aluminium U-channel bracing is incorporated into the access door to resist the unusually high pressures generated within the driver chamber. The ASX is ground stackable in letterbox orientation, with interlocking skids. Handles and removable castors assist positioning during installation.

commercial installation: ASX © Martin Audio Ltd.