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MLA

Multi-cellular Loudspeaker Array

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MLA - Multi-cellular Loudspeaker Array
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Martin Audio’s revolutionary award-winning Multi-cellular Loudspeaker Array [MLA] technology is reinventing the way loudspeaker arrays are configured and controlled. With it has come an unsurpassed control of sound with pristine fidelity and huge output capability — bringing the FOH engineer and the audience together in a more powerful, involving experience.

Features

  • Numerically optimised, fully integrated, touring sound system
  • Compact size and inherent scalability provide ideal “one-box” solution across rental markets
  • Cellular array format with built-in amplification, DSP and digital networking
  • 6 dedicated Class D amplifier channels per enclosure for individual powering and DSP control of individual cells
  • Industry leading DISPLAY2™ intelligent software interacts with onboard DSP for highly accurate array optimisation. Eliminates trial-and-error array preset library approximations
  • “Fly-by-wire” software adjusts vertical coverage electronically to cope with changing environmental conditions and last-minute changes in rigging height
  • Switched mode power supply with PFC (Power Factor Correction) and global mains voltage operation
  • Three-way all-horn design delivers LF/MF/HF peak SPL’s of 140/139/145dB @ 1m from a single, compact enclosure
  • Fast, integral flying system for suspension of up to 24 enclosures
  • True 90° (-6dB) horizontal constant directivity, mid and high frequency pattern control. Consistent and usable out to 120° (-10dB)
  • 60Hz–18kHz ± 3dB full bandwidth frequency response

Benefits

  • Unprecedented, even, house-curve balance achieved right from power-up
  • Intelligent numerical optimisation software eliminates trial and error in system set-up
  • Improved venue-to-venue, gig-to-gig consistency and repeatability
  • Artistic changes to balance at the mix position or elsewhere translate directly and accurately throughout the audience
  • Exceptionally high power density means tighter truck-pack for higher SPL compared to other systems
  • “Greener” audio power via PFC (Power Factor Correction)

Applications

  • Large-scale touring sound reinforcement for outdoor festivals, stadia, arenas and concert halls
  • Premium fixed installations in concert halls, theatres and sports

MLA is the next generation and there is nothing out there to match it

John Carroll, Managing Director, RG Jones
The Multi Cellular Revolution
Advanced Sound Control Technology, that’s easy to use
Audio Perfection
The Noise Pollution Solution
Specification
Acoustical
TYPEThree-way cellular drive, active array element
FREQUENCY RESPONSE (1)52Hz-18kHz ± 3dB
MAXIMUM SPL @ 1m
  • LF: 133dB continuous, 139dB peak (3)
  • MF: 134dB continuous, 140dB peak (4)
  • HF: 139dB continuous, 145dB peak (4)
Drivers
LF2 x12” (300mm)/3” (75mm) voice coil, ultra-long excursion,
neodymium magnet drivers, Hybrid® bass horn loaded
MF2 x 6.5” (165mm)/2” (50mm) coil,
neodymium magnet drivers, horn loaded
HF3 x 1” (25mm) exit neodymium magnet
compression drivers, horn loaded
Rated Power (2)
LF800W AES, 3200W peak
MF400W AES, 1600W peak
HF150W AES, 600W peak
Dispersion
  • (-6dB) 90º horizontal
  • (-10dB) 120º horizontal
  • 7.5° vertical
Crossover Frequencies
  • 320Hz: 8th-order Linkwitz-Riley
  • 4kHz: Vanishing Point™ FIR filters Audio input
CONNECTORSFemale XLR input
Male XLR link output
ANALOGUE INPUT IMPEDANCE20kΩ balanced to ground
MAXIMUM ANALOGUE INPUT LEVEL6.15Vrms (+18dBu), over voltage protected
NOMINAL SYSTEM GAIN28.5dB
AES/EBU IMPEDANCE110 Ohms balanced, Receive and transmit termination
Network
CONNECTORS2x IP68 rated 8-way, quick-release type
PROTOCOLU-NET
Amplifier Module
TYPESix channel Class D, fixed frequency
PEAK OUTPUT POWER6000W
AVERAGE EFFICIENCY75%
COOLING
  • 4 x temperature controlled internal fans
  • 1 x low-speed internal blower
  • 1 x temperature controlled external fan
MAXIMUM AMBIENT TEMPERATURE45°C (113°F) for full output
Power Supply
TYPESwitch mode, fixed frequency with PFC
AC INPUT OPERATING RANGE100 – 240V ~ AC, 50 - 60Hz
AC OVERVOLTAGE TOLERANCE400V AC
POWER FACTOR > 0.95
NOMINAL POWER CONSUMPTION900W
MAINS CONNECTOR16A IEC309 (Ceeform) – IP44 rated
General
ENCLOSUREVertical trapezoid with 3.75º wall angle,multi-laminate birch and poplar-ply construction
FINISHTextured black PU coating
PROTECTIVE GRILLE Black HEX perforated steel
FITTINGS
  • Proprietary rigging system
  • Bar handles on each side
  • Protective rubber side-cheeks incorporating skids
  • Wheel-board
  • Transit cover
  • Weather Protection Cowl
IP RATINGIP 24
DIMENSIONS(inc. wheel-board) (W) 1136mm x (H) 372mm (376mm) x (D) 675mm (825mm)
(W) 44.7in x (H) 14.6in (14.8in) x (D) 26.5in (32.4in)
WEIGHT(ex. wheel-board) 87.5kg (193lbs)
Architectural Specs
MLA
Architectural Specifications

The loudspeaker shall be a self-powered, vertically-arrayable three-way system. Its transducers shall consist of two 12” horn-loaded low frequency drivers, two 6.5” midrange drivers each coupled to a constant-directivity midrange horn, and three 1” exit compression drivers each coupled to a constant-directivity high frequency horn. The drivers shall be configured to be driven as one low-frequency cell, two midrange cells and three high-frequency cells.

The loudspeaker shall incorporate a Class D amplifier module with six channels of amplification and DSP for independent drive and control of each cell. The amplifier shall deliver a total of 6kW 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 have 90° horizontal dispersion and 7.5° vertical dispersion. Vertical dispersion of the complete array shall be determined by a combination of the splay angles between adjacent enclosures and dedicated array control software. The on-axis frequency response shall be 52Hz-18kHz +/- 3dB and the loudspeaker shall produce a maximum SPL of 139dB peak (LF), 140dB peak (MF) and 145dB peak (HF) at 1 metre.

The loudspeaker enclosure shall be constructed from multi-laminate birch and poplar 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 24 enclosures suspended from a dedicated flying frame.

Dimensions excluding wheel-board (W x H x D) shall be 1136mm x 372mm x 675mm (44.7in x 14.6in x 26.5in). Weight shall be 87.5kg (193lbs).

The loudspeaker shall be the Martin Audio MLA.

Accessories
MLD Product Shot
MLD - Multi-Cellular Loudspeaker Array Downfill [MLA Systems]

MLD

Three-way cellular drive

Active Array Downfill for MLA

MLX product shot
MLX - Hybrid® Horn/Reflex Subwoofer [MLA Systems]

MLX

Hybrid® horn/reflex

2 x 18” Subwoofer for MLA

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