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MA12K
Lightweight, High Power, High Performance Power Amplifier
features
◗ Worldwide mains operating voltage
◗ Power Factor Correction
◗ Over-temperature forecasting
◗ Thermal, short-circuit and overload protection
◗ Temperature controlled air cooling system
◗ Clip and permanent signal limiter
◗ Digital gain attenuation
◗ User selectable maximum output power
◗ User selectable maximum mains current draw
◗ PC remote control, monitoring and diagnostics
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: info@martin-audio.com
All information is Copyright © 2007 Martin Audio Ltd.
The MA12K is one of three models extending the range of the
renowned MA Series power amplifiers. The MA12K 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 MA12K 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.
www.martin-audio.com
overall dimensions
technical specifications
MAX OUTPUT POWER
EIA AT 1KHz AND 1% THD
8Ω PER CHANNEL 2000W
4Ω PER CHANNEL 4000W
2Ω PER CHANNEL 6000W
16Ω BRIDGED 4000W
8Ω BRIDGED 8000W
4Ω BRIDGED 12000W
DISTORTION
THD FROM 0.1W TO FULL POWER < 0.05% (typically)
INTERMODULATION SMPTE < 0.05% (typically)
INTERMODULATION DIM 30 < 0.05% (typically)
S/N RATIO >110dBA (20Hz to 20KHz)
DAMPING FACTOR (8 ohm) > 5000 (20Hz to 20KHz)
OUTPUT IMPEDANCE 60mΩ (User Selectable with
KDSP option)
SLEW RATE 50V/µs
INPUTS
GAIN SELECTABLE (dB) 26, 29, 32, 35
IMPEDANCE 10KΩ
FRONT PANEL
DISPLAY Interactive LCD Matrix
INDICATORS 2 x Multi-function 7 segment
LED Bargraph
MENU NAVIGATION 4 x Digital Push Button
NETWORK 2 x RJ45
DATA STORAGE & TRANSFER Smart Card Reader
REAR PANEL
INPUT CONNECTORS Neutrik XLR / 6.3mm (0.25ins)
Jack Combo
OUPUT CONNECTORS Neutrik Speakon
LINK SWITCH Channel A-B Link
DATA PORT RS485 Via RJ45
POWER
OPERATION VOLTAGE AC: 95-265V (50/60Hz)
DIMENSIONS
WIDTH 483mm (19ins)
HEIGHT 44mm (1.75ins) 1U
DEPTH 475mm (18.7ins)
WEIGHT 12kg (26.5lbs)
electronics