Martin Audio technical specifications Blackline M3+, Electronic controller, Features

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Blackline M3+

Electronic controller

features

Dedicated Blackline+ Series controller

Two-way stereo operation

Plug-in Blackline+ system-specific card

Advanced limiter design

19” 1U standard rackmount

professional

applications

Control of Blackline+ Series loudspeakers

Live and fixed installation use

The M3+ is a versatile system controller, housed in a single rack unit, which has been specifically designed to enhance the performance of the Blackline range of loudspeakers. The M3+ controller provides active crossover, EQ and limiter functions for the bi-amped H3T+/H3+ as well as various Blackline+ sub-bass/full- range combinations.

overall dimensions

technical specifications

INPUTS

2 electronically balanced

IMPEDANCE

20K ohms (10K ohms per leg single ended)

CMRR

60dB 20Hz – 10kHz

CONNECTORS

3 pin female XLR

OUTPUTS

4 electronically balanced

SOURCE IMPEDANCE

62 ohms

MIN. LOAD IMPEDANCE

600 ohms

MAX. OUTPUT

+ 20dBu into 600 ohms

CONNECTORS

3 pin male XLR

FREQUENCY RESPONSE

-3dB @ 18Hz 12dB/octave

 

-3dB @ 45KHz 12dB/octave

 

(ultimately set by system parameters)

DISTORTION + NOISE

0.01% THD @ 2V output (limiters cancelled)

SIGNAL + NOISE/NOISE RATIO

> 100dB @ 2V output

LIMITERS

Individual for each channel

 

Ratio 20:1. Threshold range – 12dBu

 

to + 12dBu in 16 steps

MAINS SUPPLY

Captive 2m 3 core cable

MAINS VOLTAGE

Internally selectable by hard wire link

 

100-120/220-240V. AC, 50/60Hz

 

Voltage tolerance on each setting ± 10%

MAINS FUSE

100-120V and 220-240V: 160mA Type ‘T’ (L)

DIMENSIONS

(W) 482mm x (H) 44mm x (D) 155mm

 

(W) 19ins x (H) 1.75ins (1U) x (D) 6.1ins

WEIGHT

2.4kg (5.28lbs)

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: info@martin-audio.com

All information is Copyright © 2007 Martin Audio Ltd.

www.martin-audio.com

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Contents Overall dimensions FeaturesBlackline M3+ Electronic controller