Martin Audio MA1400 Merkblatt

High performance power amplifier

features

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Superior sonic performance

!

Increased output current capacity

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Versatile input connections

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Removable dust filters

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Advanced protection circuits

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Multiple gain selection

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Soft Start

applications

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Live sound reinforcement

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Fixed installations

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 © 2003 Martin Audio Ltd.

The MA1400 is one of a versatile range of professional power
amplifiers designed to meet the increasing demands of both the
rental and installation markets whilst remaining cost efficient.

By harnessing a conventional toroidal transformer power supply
with the latest semiconductor technology and a proprietary
copper cooling system the MA1400 amplifier offers outstanding
sonic performance, power and reliability in a shallow (359mm)
2U package.

electronics

www.martin-audio.com

overall dimensions

technical specifications

MAX OUTPUT POWER
EIA AT 1 kHz AND 1% THD
8 PER CHANNEL

425 W

4 PER CHANNEL

700 W

2 PER CHANNEL

1050 W

8 BRIDGED

1400 W

4 BRIDGED

2100 W

MAX OUTPUT VOLTAGE
8Ω LOAD

58 Vrms

PEAK VOLTAGE, NO LOAD

91 V

DISTORTION
THD 20Hz – 20kHz AND 1 W TO FULL POWER 0.07%
THD AT 1kHz AND –1dB UNDER CLIP

0.01%

DIM AT –3dB UNDER CLIP 

0.008%

<-105dB

CHANNEL SEPARATION @ 10kHz

70dB

30 mΩ

SLEW RATE

45 V/µs

INPUTS
GAIN SELECTABLE (dB)

20, 23, 26, 29, 32, 35, 38, 41

IMPEDANCE                                           20 kΩ (balanced) 10 kΩ single ended
COMMON MODE REJECTION

50dB

FRONT PANEL
GAIN CONTROLS

31 position detent

INDICATORS: PROTECT

Yellow LED

INDICATORS: CLIP

Red LED

INDICATORS: SIGNAL PRESENT (-40dB)

Green LED

REAR PANEL
INPUT CONNECTORS                                 Neutrik Combo + 3 pin Phoenix
CLIP LIMITERS

On/off each channel

POWER
OPERATION VOLTAGE

150-260 V

SOFT START

Yes

PEAK INRUSH CURRENT

20 A

FULL OUTPUT POWER

230 V

MIN START VOLTAGE

180 V

115V OPTION

Yes

CURRENT DRAW AT 4Ω/230V
QUIESCENT POWER (NO LOAD)

0.75 A rms

1/8 OF FULL POWER (-9dB)

5.2 A

1/3 OF FULL POWER (-5dB)

8.0 A

AT FULL POWER (0dB) @ 1kHz 1%THD

14.0 A

DIMENSIONS
WIDTH

483mm (19ins)

HEIGHT

88mm (3.5ins) 2U

DEPTH (incl. handles)

359mm (14.1ins)

17kg (37lbs)