Martin Audio MA1.3s User Manual
Ma1.3s, Electronics, Light weight, high performance power amplifier

MA1.3s
Light weight, high performance power amplifier
features
!
Switch mode power supply
!
Superior sonic performance
!
Light weight
!
Advanced protection circuits
!
Efficient copper cooling system
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]
All information is Copyright © 2003 Martin Audio Ltd.
The MA1.3s is one of a range of power amplifiers that have been
designed to combine reliability and high power with sonic
excellence. Utilising an advanced switch mode power supply, the
amplifier is characterised by a very high power-to-weight ratio in
a lightweight, 2U package. The innovative technology at the
heart of the MA1.3s enables it to set new standards in terms of
sonic accuracy, impact and clarity.
electronics
www.martin-audio.com
overall dimensions
technical specifications
MAX OUTPUT POWER
EIA AT 1 kHz AND 1% THD
8 PER CHANNEL
350 W
4 PER CHANNEL
650 W
2 PER CHANNEL
1100 W
8 BRIDGED
1400 W
4 BRIDGED
1600 W
MAX OUTPUT VOLTAGE
8Ω LOAD
53 Vrms
PEAK VOLTAGE, NO LOAD
78 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
40 V/µs
INPUTS
GAIN SELECTABLE (dB)
20, 23, 26, 29, 32, 35, 38, 41
IMPEDANCE
10 kΩ
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
LINK CONNECTOR
XLR-male
CLIP LIMITERS
On/off each channel
LINK-SWITH
CH. A-B
POWER
OPERATION VOLTAGE
130-270V
SOFT START
Yes
PEAK INRUSH CURRENT
5 A
FULL OUTPUT POWER
180-260 V
MIN START VOLTAGE
175 V
115V OPTION
Yes
CURRENT DRAW AT 4Ω/230V
QUIESCENT POWER (NO LOAD)
0.9 A rms
1/8 OF FULL POWER (-9dB)
5 A rms
1/3 OF FULL POWER (-5dB)
8 A rms
AT FULL POWER (0dB) @ 1kHz 1%THD
14 A rms
DIMENSIONS
WIDTH
483mm (19ins)
HEIGHT
88mm (3.5ins) 2U
DEPTH (incl. handles)
325mm (12.8ins)
WEIGHT
7.9kg (17lbs)