Name: MLX
Rating: 4.7 (23 reviews)

The MLX is a very high performance subwoofer with onboard amplification, DSP and networking. Capable of more than 150dB peak output at 1m, it is the ultimate subwoofer for large scale tours, festivals and installations.

Features

Ultra-high output subwoofer with onboard Class D amplification. DSP and networking
Hybrid horn/reflex loading for maximum acoustic efficiency and low frequency extension
Dual ultra-long excursion 18” (460mm)/4.5” (115mm) voice coil neodymium drivers
Switched mode power supply with PFC (Power Factor Correction) and global mains voltage operation
Forward or rear-facing operation
Designed to meet IP24 environmental rating

Applications

Outdoor festivals
Stadiums, arenas and theatres
Concert halls
Premium fixed installations

Class-leading output levels are achieved by combining Hybrid® horn/reflex loading with IPAL driver and amplifier technology. Hybrid loading of two ultra-long excursion 18” (460mm) neodymium magnet drivers perfectly balances low frequency extension with astounding chest-thumping bass that has a physical impact.

MLX enclosures are designed to be flown or ground-stacked and a combination of forward and rear facing enclosures can be configured as a directional subwoofer array with specific directional properties, including cardioid. Audio settings for the MLX can be controlled either cabinet-by-cabinet or as complete arrays via the VU-NET™ network, with its intuitive graphical interface. Symmetrical rigging enables MLX’s to face backwards in flown arrays.

MLX’s onboard Class D amplifier delivers a total peak output of 8500W. Its lightweight power supply auto-ranges to global mains voltages from 100 to 240V 50/60Hz and Power Factor Correction ensures stable performance independent of mains fluctuations, as well as reducing demands on the mains supply. The amplifier, power supply and control electronics are housed in a field-replaceable, fan-cooled module that is designed to withstand the varied environmental conditions — such as rain and high ambient temperatures — typically found in live sound applications.

The MLX enclosure is constructed from multi-laminate birch plywood and finished in a hard-wearing, textured black polyurea coating. A rigid perforated steel grille protects the front of the enclosure, while rubber cheeks protect the sides. Interlocking skids protect the top and bottom surfaces and prevent movement when stacked.

Up to 15 MLX’s can be flown from an MLA system flybar.

Links

User guide Brochure Datasheet

Specification

Acoustical
Type	Hybrid® horn/reflex subwoofer
FREQUENCY RESPONSE (1)	35Hz-150Hz ± 3dB
MAXIMUM SPL (3)	LF: 140dB continuous, 150dB peak
Drivers
LF	2x18” 115mm / 4.5” voice coil, ultra-long excursion, high efficiency neodymium magnet
Rated Power (2)
LF	3000W AES, 12000W peak
Dispersion
	Digitally controlled in an array
Audio Input
CONNECTORS	Female XLR input Male XLR link output
ANALOGUE INPUT IMPEDANCE	20kΩ balanced to ground
MAXIMUM ANALOGUE INPUT LEVEL	6.15Vrms (+18dBu), over voltage protected
AES/EBU IMPEDANCE	110Ω balanced, Receive and transmit termination
Network
CONNECTORS	IP68rated 8-way, quick-release type
PROTOCOL	U-NET
Amplifier Module
TYPE	Single channel Class D, fixed frequency
PEAK OUTPUT POWER	8500W
AVERAGE EFFICIENCY	85%
COOLING	2 x temperature controlled internal fans 1 x low-speed internal blower 1 x temperature controlled external fan
MAXIMUM AMBIENT TEMPERATURE	45°C (113°F) for full output
Power Supply
TYPE	Switch mode, fixed frequency with PFC
AC INPUT OPERATING RANGE	100 – 240V ~ AC, 50 - 60Hz
POWER FACTOR	> 0.95
NOMINAL POWER CONSUMPTION	600W
MAINS CONNECTOR	16A IEC309 (Ceeform)
General
ENCLOSURE	Extensively braced, multi-laminate birch-ply
FINISH	Textured black PU coating
PROTECTIVE GRILLE	Black HEX perforated steel
FITTINGS	Proprietary rigging system Protective rubber side-cheeks incorporating skids Wheel-board Transit cover Weather protection cowl
IP Rating	IP 24
DIMENSIONS	(inc. wheel-board) (W) 1126mm x (H) 607mm (607mm) x (D) 1027mm (1200mm) (W) 44.4in x (H) 23.9in (23.9in) x (D) 47.2in
WEIGHT (ex. wheel-board)	160kg (352lbs)

Architectural Specs

MLX

The loudspeaker shall be a self-powered subwoofer capable of being ground-stacked or flown. Its transducers shall consist of two 18” ultra-long excursion drivers, in a hybrid horn/bass reflex configuration.

The loudspeaker shall incorporate a Class D amplifier module with onboard DSP. The amplifier shall deliver 8.5kW peak output to the transducers and include networking capabilities to enable remote control and system monitoring. Its power supply shall employ Power Factor Correction and operate from 100-240V, 50-60Hz AC.

Audio connectors shall be male and female XLR type and the AC power connector shall be an IEC309 CEE Form.

The loudspeaker shall be capable of forward and rear-facing operation to enable the construction of subwoofer arrays with specific directional properties determined by dedicated array control software.

The ground plane on-axis frequency response shall be 35Hz-150Hz +/- 3dB and the loudspeaker shall produce a maximum SPL of 150dB peak at 1 metre.

The loudspeaker enclosure shall be constructed from multi-laminate birch ply with a textured black polyurethane coating. The drivers shall be protected by a perforated steel grille and the enclosure shall incorporate an integral rigging system to assemble an array of up to 15 enclosures suspended from a dedicated flying frame.

Dimensions excluding wheel-board (W x H x D) shall be 1126mm x 607mm x 1027mm (44.4in x 23.9in x 47.2in). Weight shall be 160kg (352lbs).

The loudspeaker shall be the Martin Audio MLX

Drawings