Martin Audio MA1400 Manuel utilisateur

MA1400

High performance power amplifier

features

!Superior sonic performance

!Increased output current capacity

!Versatile input connections

!Removable dust filters

!Advanced protection circuits

!Multiple gain selection

!Soft Start

applications

!Live sound reinforcement

!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: [email protected]

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

8ΩLOAD 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%

HUM AND NOISE <-105dB

CHANNEL SEPARATION @ 10kHz 70dB

OUTPUT IMPEDANCE 30 mΩ

SLEW RATE 45 V/µs

INPUTS

GAIN SELECTABLE (dB) 20, 23, 26, 29, 32, 35, 38, 41

IMPEDANCE 20 kΩ(balanced) 10 kΩsingle 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)

WEIGHT 17kg (37lbs)

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