MA4.8Q

High power amplifier

features

Uncompromised sound quality

Integrated CAT-5 based monitoring and control system

Patented Class TD Topology

Regulated Switch Mode PSU

Voltage and Current Limiters

Over-Temperature and Fuse Protection

Four Discrete Channels

applications

Churches

Theatres

Clubs

Theme Parks

Arenas

Stadiums

Housed in a convenient 2U package, the MA4.8Q 4-channel amplifier allows for the adjustment of maximum voltage peak, gain adjustment and has on-board network capability for monitoring and control. With these features it is now possible to specify identical amplifiers in an installation and then adjust each output to the very specific requirements of the speaker system. A typical large-scale system is a combination of high-powered speakers, full range in-fill speakers, 70/100V ceiling speakers, with an active speaker management system. With switchable outputs and on-board network capabilities, the MA4.8Q can be designed into a complete value engineered system handling all amplification tasks.

overall dimensions

 

electronics

 

 

technical specifications

 

 

 

 

 

 

 

 

 

 

MAX OUTPUT POWER

Four Channels

 

16Ω PER CHANNEL

625 W

 

8Ω PER CHANNEL

1000 W

 

4Ω PER CHANNEL

1200 W

 

Hi-Z: 70/100V

900 W

 

MAX OUTPUT VOLTAGE

 

 

 

PER CHANNEL

100 Vrms

 

DISTORTION

 

 

 

THD 20Hz – 20kHz FOR 1W

0.1%

 

 

THD AT 1kHz AND –1dB BELOW CLIP

0.05%

 

 

SIGNAL TO NOISE RATIO

112dBA

 

CHANNEL SEPARATION @ 1kHz

70dB

 

FREQUENCY RESPONSE +0/-3dB

6.8Hz – 34kHz

 

INPUTS

 

 

 

GAIN SELECTABLE (dB)

23, 26, 29, 32, 35, 38, 41, 44

 

 

DEFAULT GAIN

35dB

 

FRONT PANEL

 

 

 

GAIN CONTROLS

21 position detent

 

INDICATORS: (common)

 

 

 

NomadLink® Network connected

Blue LED

 

Power Average Limiter

Red LED

 

Power On

Green LED

 

Option Card (on)

Yellow LED

 

FRONT PANEL INDICATORS: (per channel)

 

Signal present / Hi impedance warning

Green/Red LED

 

-10dB and –4dB output signal present

2 x Green LED

 

Voltage Peak Limiter (VPL) clipping

Red LED

 

Current Peak Limiter (CPL) active

Orange LED

 

Very High Frequency (VHF) warning

Yellow LED

 

High Temperature warning

Yellow LED

 

Fault warning

2 x Yellow LED

 

Mute

2 x Yellow LED

 

REAR PANEL

 

 

 

INPUT CONNECTORS

3-pin Phoenix, electronically balanced

 

OUTPUT CONNECTORS

Barrier strip 2-pole screw terminals

 

POWER

 

 

 

OPERATION VOLTAGE

130-265 V / 65-135 V

 

MINIMUM POWER-UP VOLTAGE 230V / 115V

171V / 85V

 

POWER AVERAGE LIMITER

Yes

 

SOFT START / INRUSH CURRENT DRAW

Yes / max 5A

 

DIMENSIONS

 

 

 

WIDTH

483mm (19ins)

 

HEIGHT

88mm (3.5ins) 2U

 

DEPTH

343mm (13.5ins)

 

WEIGHT

12kg (26.4lbs)

 

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 © 2006 Martin Audio Ltd.

www.martin-audio.com

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Martin Audio MA4.8Q technical specifications Features, Applications, Overall dimensions

MA4.8Q specifications

The Martin Audio MA4.8Q is a powerful and versatile four-channel amplifier celebrated for its high-performance capabilities in professional audio environments. This amplifier is specifically designed for demanding applications such as concerts, festivals, and corporate events, making it an essential tool for sound engineers and rental companies alike.

One of the standout features of the MA4.8Q is its Class D amplifier architecture, which ensures exceptional efficiency and a reduced heat output. With a maximum output power of 2,000 watts per channel at 4 ohms, the MA4.8Q delivers unparalleled audio fidelity and headroom. This allows sound professionals to push the limits of their audio systems without experiencing distortion, even at high volumes.

The MA4.8Q is equipped with advanced DSP (Digital Signal Processing) capabilities, providing users with complete control over their audio signals. The onboard DSP allows for customizable crossover settings, EQ adjustments, delay management, and limiter settings, all of which can be easily accessed and adjusted using the intuitive graphical user interface. This functionality ensures that the amplifier can be tailored to the specific requirements of different loudspeakers and venues.

Additionally, the MA4.8Q features a robust yet lightweight construction, making it ideal for portable setups. Its built-in front-to-back ventilation system allows for sustained operation without the need for additional cooling, further enhancing its reliability during extended use. The amplifier also incorporates comprehensive protection circuits, safeguarding against over-temperature, short circuits, and signal clipping, which ensures longevity and consistent performance.

Connectivity options on the MA4.8Q include both balanced XLR inputs and speakON outputs, providing flexibility for various cabling configurations. With multiple amplifier racks available for stacking, the MA4.8Q can easily integrate into larger systems without compromising on space or efficiency.

Overall, the Martin Audio MA4.8Q stands out in the marketplace for its blend of power, efficiency, and advanced audio processing capabilities. It is tailored for professionals who demand high-performance audio solutions, making it an invaluable asset in any sound reinforcement arsenal.