MA1400
High performance power amplifier
features
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Superior sonic performance
Increased output current capacity
Versatile input connections
Removable dust filters
Advanced protection circuits
Multiple gain selection
Soft Start
technical specifications
applications
MAX OUTPUT POWER
EIA AT 1 kHz AND 1% THD
8 PER CHANNEL
4 PER CHANNEL
2 PER CHANNEL
8 BRIDGED
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Live sound reinforcement
Fixed installations
425 W
700 W
1050 W
1400 W
2100 W
4 BRIDGED
MAX OUTPUT VOLTAGE
8Ω LOAD
58 Vrms
91 V
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.
PEAK VOLTAGE, NO LOAD
DISTORTION
THD 20Hz – 20kHz AND 1 W TO FULL POWER 0.07%
THD AT 1kHz AND –1dB UNDER CLIP
DIM AT –3dB UNDER CLIP
HUM AND NOISE
CHANNEL SEPARATION @ 10kHz
OUTPUT IMPEDANCE
SLEW RATE
0.01%
0.008%
<-105dB
70dB
30 mΩ
45 V/µs
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.
INPUTS
GAIN SELECTABLE (dB)
IMPEDANCE
COMMON MODE REJECTION
FRONT PANEL
GAIN CONTROLS
INDICATORS: PROTECT
INDICATORS: CLIP
20, 23, 26, 29, 32, 35, 38, 41
20 kΩ (balanced) 10 kΩ single ended
50dB
31 position detent
Yellow LED
Red LED
INDICATORS: SIGNAL PRESENT (-40dB)
REAR PANEL
Green LED
INPUT CONNECTORS
CLIP LIMITERS
Neutrik Combo + 3 pin Phoenix
On/off each channel
POWER
OPERATION VOLTAGE
SOFT START
150-260 V
Yes
20 A
230 V
180 V
Yes
PEAK INRUSH CURRENT
FULL OUTPUT POWER
MIN START VOLTAGE
115V OPTION
overall dimensions
CURRENT DRAW AT 4Ω/230V
QUIESCENT POWER (NO LOAD)
1/8 OF FULL POWER (-9dB)
1/3 OF FULL POWER (-5dB)
AT FULL POWER (0dB) @ 1kHz 1%THD
DIMENSIONS
0.75 A rms
5.2 A
8.0 A
14.0 A
WIDTH
483mm (19ins)
88mm (3.5ins) 2U
359mm (14.1ins)
17kg (37lbs)
HEIGHT
DEPTH (incl. handles)
WEIGHT
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.
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