Martin Audio MA18K Manuel utilisateur

MA18K

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: [email protected]

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

8ΩPER CHANNEL 2700W

4ΩPER CHANNEL 5200W

2ΩPER CHANNEL 9000W

16ΩBRIDGED 5400W

8ΩBRIDGED 10400W

4ΩBRIDGED 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)

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