Martin Audio MA18K Technical Specifications

MA18K
Lightweight, High Power, High Performance Power Amplifier
features
Q
Worldwide mains operating voltage
Q
Power Factor Correction
Q
Over-temperature forecasting
Q
Thermal, short-circuit and overload protection
Q
Temperature controlled air cooling system
Q
Clip and permanent signal limiter
Q
Digital gain attenuation
Q
User selectable maximum output power
Q
User selectable maximum mains current draw
Q
PC remote control, monitoring and diagnostics
applications
Q
Live sound reinforcement
Q
Fixed installations
The MA18K is one of three models extending the range of the
renowned MA Series power amplifiers. The MA18K utilises the Pulse
Width Modulation principal in combination with a high efficiency two
stage switching power supply to deliver true class D operation with
unparalled sonic performance and hitherto unobtainable power delivery.
The MA18K operates at an astonishing 95% efficiency virtually
regardless of output power, occupies only 1U of rack space and is a
mere 12kg (26.5lbs) in weight.

overall dimensions

technical specifications

MAX OUTPUT POWER
EIA AT 1KHz AND 1% THD
8Ω PER CHANNEL
4Ω PER CHANNEL
2Ω PER CHANNEL
16Ω BRIDGED
8Ω BRIDGED
4Ω BRIDGED
DISTORTION
THD FROM 0.1W TO FULL POWER
INTERMODULATION SMPTE
INTERMODULATION DIM 30
S/N RATIO
DAMPING FACTOR (8 ohm)
OUTPUT IMPEDANCE
SLEW RATE
INPUTS
GAIN SELECTABLE (dB)
IMPEDANCE
FRONT PANEL
DISPLAY
INDICATORS
MENU NAVIGATION
NETWORK
DATA STORAGE & TRANSFER
REAR PANEL
INPUT CONNECTORS
OUPUT CONNECTORS
LINK SWITCH
DATA PORT
POWER
OPERATION VOLTAGE
DIMENSIONS
WIDTH
HEIGHT
DEPTH
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 © 2007 Martin Audio Ltd.
www.martin-audio.com
2700W
5200W
9000W
5400W
10400W
18000W
< 0.05% (typically)
< 0.05% (typically)
< 0.05% (typically)
>110dBA (20Hz to 20KHz)
> 5000 (20Hz to 20KHz)
60mΩ (User Selectable with
KDSP option)
50V/µs
26, 29, 32, 35
10KΩ
Interactive LCD Matrix
2 x Multi-function 7 segment
LED Bargraph
4 x Digital Push Button
2 x RJ45
Smart Card Reader
Neutrik XLR / 6.3mm (0.25ins)
Jack Combo
Neutrik Speakon
Channel A-B Link
RS485 Via RJ45
AC: 95-265V (50/60Hz)
483mm (19ins)
44mm (1.75ins) 1U
475mm (18.7ins)
12kg (26.5lbs)