Martin Audio MA18K technical specifications Features, Applications

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MA18K

Lightweight, High Power, High Performance Power Amplifier

electronics

features

Worldwide mains operating voltage

Power Factor Correction

Over-temperature forecasting

Thermal, short-circuit and overload protection

Temperature controlled air cooling system

Clip and permanent signal limiter

Digital gain attenuation

User selectable maximum output power

User selectable maximum mains current draw

PC remote control, monitoring and diagnostics

applications

Live sound reinforcement

Fixed installations

The MA18K is one of three models extending the range of the renowned MA Series power amplifiers. The MA18K utilises the Pulse Width Modulation principal in combination with a high efficiency two stage switching power supply to deliver true class D operation with unparalled sonic performance and hitherto unobtainable power delivery. The MA18K operates at an astonishing 95% efficiency virtually regardless of output power, occupies only 1U of rack space and is a mere 12kg (26.5lbs) in weight.

overall dimensions

technical specifications

MAX OUTPUT POWER

EIA AT 1KHz AND 1% THD 8Ω PER CHANNEL

4Ω PER CHANNEL

2Ω PER CHANNEL

16Ω BRIDGED

8Ω BRIDGED

4Ω BRIDGED

DISTORTION

THD FROM 0.1W TO FULL POWER INTERMODULATION SMPTE INTERMODULATION DIM 30

S/N RATIO

DAMPING FACTOR (8 ohm)

OUTPUT IMPEDANCE

SLEW RATE

INPUTS

GAIN SELECTABLE (dB)

IMPEDANCE

FRONT PANEL

DISPLAY

INDICATORS

MENU NAVIGATION NETWORK

DATA STORAGE & TRANSFER

REAR PANEL

INPUT CONNECTORS

OUPUT CONNECTORS

LINK SWITCH

DATA PORT

POWER

OPERATION VOLTAGE

DIMENSIONS

WIDTH

HEIGHT

DEPTH

WEIGHT

2700W

5200W

9000W

5400W

10400W

18000W

<0.05% (typically)

<0.05% (typically)

<0.05% (typically) >110dBA (20Hz to 20KHz)

>5000 (20Hz to 20KHz)

60mΩ (User Selectable with KDSP option)

50V/µs

26, 29, 32, 35 10KΩ

Interactive LCD Matrix

2 x Multi-function 7 segment LED Bargraph

4 x Digital Push Button

2 x RJ45

Smart Card Reader

Neutrik XLR / 6.3mm (0.25ins)

Jack Combo

Neutrik Speakon

Channel A-B Link

RS485 Via RJ45

AC: 95-265V (50/60Hz)

483mm (19ins) 44mm (1.75ins) 1U 475mm (18.7ins) 12kg (26.5lbs)

Century Point, Halifax Road, Cressex Business Park, High Wycombe, Buckinghamshire HP12 3SL, England.

Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669

E-mail: info@martin-audio.com

All information is Copyright © 2007 Martin Audio Ltd.

www.martin-audio.com

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Contents Overall dimensions Technical specifications FeaturesApplications

MA18K specifications

The Martin Audio MA18K is a powerful amplifier that is engineered for high-performance sound reinforcement applications, making it a popular choice among audio professionals. With its robust design and advanced technology, the MA18K is capable of delivering exceptional audio quality, reliability, and impressive versatility.

One of the standout features of the MA18K is its output capability. With a maximum output of 18,000 watts in bridged mode, it provides ample power for driving large PA systems, making it ideal for concerts, festivals, and permanent installations. The amplifier offers a range of connectivity options, including XLR inputs and outputs, making it easy to integrate into various audio setups. Its power ratings can handle both 2-ohm and 4-ohm loads, providing flexibility for different speaker configurations.

The MA18K is built on advanced Class D amplification technology, which not only increases efficiency but also reduces heat generation. This technology allows for a lightweight design without compromising on performance, so it can be easily transported and set up for different events. Additionally, built-in protections are integrated to safeguard against short circuits, over-temperature, and clipping, ensuring long-term reliability in demanding environments.

Martin Audio has also equipped the MA18K with sophisticated digital signal processing (DSP). This allows for precise manipulation of audio signals, including limiting, EQ, and crossover functions. The DSP can be controlled via an intuitive user interface, enabling audio engineers to tailor the sound to meet the specific requirements of any venue or event.

For monitoring and management, the MA18K boasts connectivity options for remote control. Users can access monitoring data and control parameters such as gain adjustments and signal routing through a PC or tablet, enhancing operational efficiency, especially in large setups.

Moreover, the MA18K is designed with a rugged, roadworthy chassis to withstand the rigors of touring and the demands of installation applications. Its cooling system features dual variable speed fans that adapt to the thermal load, ensuring optimal performance without producing excessive noise.

In summary, the Martin Audio MA18K is a versatile and powerful amplifier that combines cutting-edge technology with practical features. Its high power output, Class D efficiency, robust build, and advanced DSP capabilities make it a top choice for audio professionals looking to achieve exceptional sound quality in any setting.