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User Guide

MA1.6s
Light weight, high performance power amplifier

ELECTRONICS

The MA1.6s 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 power-to-weight ratio in a lightweight, 2U package. The innovative technology at the heart of the MA1.6s enables it to set new standards in terms of sonic accuracy, impact and clarity.

FEATURES

Switch mode power supply
Superior sonic performance
Light weight
Advanced protection circuits
Efficient copper cooling system
Minimum load switches (MLS™)

APPLICATIONS

Live sound reinforcement
Fixed installations

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TECHNICAL SPECIFICATIONS

MAX OUTPUT POWER
EIA AT 1kHz AND 1% THD
MLS in 0dB position
8 PER CHANNEL	430 W
4 PER CHANNEL	840 W
2 PER CHANNEL	1200 W
8 BRIDGED	1680 W
4 BRIDGED	2400 W
MAX OUTPUT VOLTAGE
8Ω LOAD	59 Vrms
PEAK VOLTAGE, NO LOAD	85 V
DISTORTION
THD 20Hz – 20kHz AND 1 W TO FULL POWER	0.07%
THD AT 1kHz AND –1dB UNDER CLIP	0.01%
DIM AT –3dB UNDER CLIP	0.008%
HUM AND NOISE	<-105dB
CHANNEL SEPARATION @ 10kHz	70dB
OUTPUT IMPEDANCE	30 mΩ
SLEW RATE	60 V/µs
INPUTS
GAIN SELECTABLE (dB)	20, 23, 26, 29, 32, 35, 38, 41
IMPEDANCE	10 kΩ
COMMON MODE REJECTION	50dB
FRONT PANEL
GAIN CONTROLS	31 position detent
INDICATORS: PROTECT	Yellow LED
INDICATORS: CLIP	Red LED
INDICATORS: SIGNAL PRESENT (-40dB)	Green LED
REAR PANEL
INPUT CONNECTORS	Neutrik Combo
LINK CONNECTORS	XLR-Male
CLIP LIMITERS	On/off each channel
MLS SWITCH	0 or -3dB
LINK - SWITCH	CH. A-B
POWER
OPERATION VOLTAGE	130-270V
SOFT START	Yes
PEAK INRUSH CURRENT	5 A
FULL OUTPUT POWER	180 - 260 V
MIN START VOLTAGE	175 V
115V OPTION	Yes
CURRENT DRAW AT 4Ω/230V
QUIESCENT POWER (NO LOAD)	1 A rms
1/8 OF FULL POWER (-9dB)	6 A rms
1/3 OF FULL POWER (-5dB)	9 A rms
AT FULL POWER (0dB) @ 1kHz 1%THD	16 A rms
DIMENSIONS
WIDTH	483mm (19ins)
HEIGHT	88mm (3.5ins) 2U
DEPTH (incl. handles)	325mm (12.8ins)
WEIGHT	8kg (18lbs)

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