Martin Audio MA18K - Manual

MA18K
Lightweight, High Power, High Performance Power Amplifier
features
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Worldwide mains operating voltage
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Power Factor Correction
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Over-temperature forecasting
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Thermal, short-circuit and overload protection
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Temperature controlled air cooling system
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Clip and permanent signal limiter
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Digital gain attenuation
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User selectable maximum output power
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User selectable maximum mains current draw
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PC remote control, monitoring and diagnostics
applications
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Live sound reinforcement
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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 © 2007 Martin Audio Ltd.
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.
www.martin-audio.com
overall dimensions
technical specifications
MAX OUTPUT POWER
EIA AT 1KHz AND 1% THD
8Ω PER CHANNEL
2700W
4Ω PER CHANNEL 5200W
2Ω PER CHANNEL 9000W
16Ω BRIDGED 5400W
8Ω BRIDGED 10400W
4Ω BRIDGED 18000W
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