MA2.8s
Light weight, high performance power amplifier
features
!Switch mode power supply
!Superior sonic performance
!Light weight
!Advanced protection circuits
!Efficient copper cooling system
!Minimum load switches (MLS™)
electronics
applications
!Live sound reinforcement
!Fixed installations
The MA2.8s is one of a range of power amplifiers that have been designed to combine reliability and high power with sonic excellence. Utilising an advanced switch mode power supply, the amplifier is characterised by a very high
overall dimensions
technical specifications
MAX OUTPUT POWER |
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EIA AT 1 kHz AND 1% THD |
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MLS in 0dB position |
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8 PER CHANNEL | 1100 W |
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4 PER CHANNEL | 1500 W |
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2 PER CHANNEL | 1700 W |
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8 BRIDGED | 3000 W |
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4 BRIDGED | 3100 W |
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MAX OUTPUT VOLTAGE |
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8Ω LOAD | 94 Vrms |
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PEAK VOLTAGE, NO LOAD | 135 V |
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DISTORTION |
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THD 20Hz – 20kHz AND 1 W TO FULL POWER | 0.08% |
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THD AT 1kHz AND | 0.03% |
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DIM AT | 0.02% |
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HUM AND NOISE |
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CHANNEL SEPARATION @ 10kHz | 80dB |
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OUTPUT IMPEDANCE | 60 mΩ |
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SLEW RATE | 20 V/µs |
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INPUTS |
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GAIN SELECTABLE (dB) | 20, 23, 26, 29, 32, 35, 38, 41 |
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IMPEDANCE | 10 kΩ |
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COMMON MODE REJECTION | 50dB |
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FRONT PANEL |
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GAIN CONTROLS | 31 position detent |
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INDICATORS: PROTECT | Yellow LED |
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INDICATORS: CLIP | Red LED |
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INDICATORS: SIGNAL PRESENT | Green LED |
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REAR PANEL |
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INPUT CONNECTORS | Neutrik Combo |
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LINK CONNECTOR |
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CLIP LIMITERS | On/off each channel |
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MLS SWITCH | 0, |
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CH. |
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POWER |
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OPERATION VOLTAGE |
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SOFT START | Yes |
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PEAK INRUSH CURRENT | 5 A |
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FULL OUTPUT POWER |
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MIN START VOLTAGE | 175 V |
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115V OPTION | Yes |
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CURRENT DRAW AT 4Ω/230V |
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QUIESCENT POWER (NO LOAD) | 1 A rms |
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1/8 OF FULL POWER | 5 A rms |
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1/3 OF FULL POWER | 11 A rms |
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AT FULL POWER (0dB) @ 1kHz 1%THD | 19 A rms |
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DIMENSIONS |
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WIDTH | 483mm (19ins) |
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HEIGHT | 88mm (3.5ins) 2U |
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DEPTH (incl.handles) | 393mm (15.5ins) |
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WEIGHT | 10kg (22lbs) |
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Century Point, Halifax Road, Cressex Business Park, |
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High Wycombe, Buckinghamshire HP12 3SL, England. |
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Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669 |
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All information is Copyright © 2003 Martin Audio Ltd. |
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