Martin-audio MA18K 功率放大器


产品介绍

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.

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

TECHNICAL SPECIFICATIONS

MAX OUTPUT POWER
EIA AT 1KHz AND 1% THD
8Ω PER CHANNEL:2700 W
4Ω PER CHANNEL:5200 W
2Ω PER CHANNEL:9000 W
16Ω BRIDGED:5400 W
8Ω BRIDGED:10400 W
4Ω BRIDGED:18000 W
THD FROM 0.1W TO FULL POWER:< 0.05% (typically)
INTERMODULATION SMPTE:< 0.05% (typically)
INTERMODULATION DIM 30:< 0.05% (typically)
SIGNAL TO NOISE 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
GAIN SELECTABLE (dB):26, 29, 32, 35
IMPEDANCE:10KΩ
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
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
OPERATION VOLTAGE:AC: 95-265V (50/60Hz)
DIMENSIONS:(W)483mm (19ins)*(H)48mm (1.75ins) 1U*(D)475mm (18.7ins)
WEIGHT:12kg (26.5lbs)

产品价格

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