Martin Audio MA6.8Q High power amplifier

Housed in a convenient 2U package, the MA6.8Q 4-channel amplifier allows for the adjustment of maximum voltage peak, gain adjustment and has on-board network capability for monitoring and control. With these features it is now possible to specify identical amplifiers in an installation and then adjust each output to the very specific requirements of the speaker system. A typical large-scale system is a combination of high-powered speakers, full range in-fill speakers, 70/100V ceiling speakers, with an active speaker management system. With switchable outputs and on-board network capabilities, the MA6.8Q can be designed into a complete value engineered system handling all amplification tasks.



Features

Uncompromised sound quality

Integrated CAT-5 based monitoring

control system

Patented Class TD Topology

Regulated Switch Mode PSU

Voltage and Current Limiters

Over-Temperature and Fuse Protection

Four Discrete Channels


Applications

Churches

Theatres

Clubs

Theme Parks

Arenas

Stadiums


Technical Specification


MAX OUTPUT POWER

Four Channels

16O PER CHANNEL 650W

8O PER CHANNEL 1200 W

4O PER CHANNEL 1700 W

Hi-Z: 70/100V 1600 W


MAX OUTPUT VOLTAGE

PER CHANNEL 100 Vrms


DISTORTION

THD 20Hz – 20kHz AND 1 W 0.1%

THD AT 1kHz AND –1dB BELOW CLIP 0.05%

SIGNAL TO NOISE RATIO 112dB

CHANNEL SEPARATION @ 1kHz 70dB

FREQUENCY RESPONSE +0/-3dB 6.8Hz - 34kHz


INPUTS

GAIN SELECTABLE (dB) 23, 26, 29, 32, 35, 38, 41, 44

DEFAULT GAIN 35dB


FRONT PANEL

GAIN CONTROLS 21 position detent


INDICATORS

(common)

NormadLink® Network connected Blue LED

Power Average Limiter Red LED

Power On Green LED

Option Card (on) Yellow LED


FRONT PANEL INDICATORS

(per channel)

Signal present / Hi impedance warning Green/Red LED

-10dB and -4dB output signal present 2 x Green LED

Voltage Peak Limiter (VPL) clipping Red LED

Current Peak Limiter (CPL) active Orange LED

Very High Frequency (VHF) warning Yellow LED

High Temperature warning Yellow LED

Fault Warning 2 x Yellow LED

Mute 2 x Yellow LED


REAR PANEL

INPUT CONNECTORS 3-pin Phoenix, electronically balanced

OUTPUT CONNECTORS Barrier strip 2-pole screw terminals


POWER


OPERATION VOLTAGE 130-265 V / 65-135V

MINIMUM POWER-UP VOLTAGE 230V / 115V 171V / 85V

POWER AVERAGE LIMITER Yes

SOFT START / INRUSH CURRENT DRAW Yes / max 5A


DIMENSIONS


WIDTH 483mm (19ins)

HEIGHT 88mm (3.5ins) 2U

DEPTH (incl. handles) 343mm (13.5ins)

WEIGHT 12kg (26.4lbs)