Martin Audio Engineer 418 technical specifications Features, Applications, Overall dimensions

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Engineer 418

Installed system digital management processor

features

4 input, 8 output freely routable signal path

8-band fully parametric EQ on every input/output

Highpass and lowpass crossover filters on every output with slopes up to 24dB/octave

Choice of Linkwitz-Riley, Butterworth or Bessel filters

Speaker protection limiters on every output

Unique advanced human-based Engineer algorithm

Unique psycho-acoustical perceptual BassCreator algorithm

Flexible event scheduler

RS232 interface for PC programming and control

RS485 interface for external remote control

applications

Fixed Installation loudspeaker system management

Automatic control of programme level and tonal quality to compensate for variations in programme sources

Eliminates sub frequency noise pollution

The Martin Audio Engineer is an advanced, powerful digital signal processor designed to provide comprehensive control and management of installed loudspeaker systems.

Incorporating a broad range of standard facilities; gain, EQ, limiting, time delay and a 4 x 8 routing matrix, the Engineer features the BassCreator and Engineer algorithms. These unique, innovative functions offer solutions to some of the most commonly encountered operational and environmental problems encountered in audio system design.

overall dimensions

 

electronics

 

 

 

 

 

technical specifications

 

 

 

 

 

INPUTS

Four electronically balanced

 

IMPEDANCE

> 25K ohms

 

OUTPUTS

Eight electronically balanced

 

SOURCE IMPEDANCE

< 60 ohms

 

MIN. LOAD

600 ohms

 

MAX. LEVEL

+20dBu

 

FREQUENCY RESP.

+ 0.1dB 8Hz - 20kHz

 

DYNAMIC RANGE

> 110dB Unweighted

 

DISTORTION

0.0035% @ 1kHz 0dB

 

INPUT GAIN

Adjustable +12dB to -inf. on 0.25dB steps

 

OUTPUT GAIN

Adjustable +12dB to -inf. on 0.25dB steps

 

P A R A M E T R I C E Q UA L I S AT I O N

 

 

 

FILTERS

8 bands per input, 8 bands per output

 

FILTER TYPES

Bell, Lowshelf, Highshelf, Notch, Bandpass

 

FILTER GAIN

+12dB to -45dB in 0.25dB steps

 

FILTER Q/BW

User selectable 0.05 to 20 / 20 to 0.05

 

FREQUENCY RANGE

20Hz - 20kHz

 

H I G H A N D LO W PA S S F I LT E R S

 

FILTERS

One high and one lowpass for each output

 

FREQUENCY RANGE

20Hz - 20kHz

 

RESPONSE

Bessel, Butterworth, Linkwitz-Riley 12/18/24 dB/oct

 

L I M I T E R S

 

 

 

LIMITER THRESHOLD

+20dBu to -43dBu

 

ATTACK TIME

0.3 to 45ms

 

RELEASE TIME

4.8 to 720ms

 

B AS S C R E AT O R A L G O R I T H M

 

 

 

PLACEMENT

Freely insertable on any output

 

FREQUENCY RANGE

Virtual 30Hz to 120Hz

 

PARAMETERS

Drive, mix level

 

E N G I N E E R A L G O R I T H M

 

 

 

PLACEMENT

Freely insertable on any input

 

OPERATING RANGE

-45dB to +22dB

 

P R E S E T S

 

 

 

PRESET TYPES

System, Routing, Noise Emission, Engineer

 

PRESET NUMBER

32 user-accessible presets

 

S E C U R I T Y

 

 

 

LEVELS

3 security levels with user assignable passwords

 

STORAGE

Security settings are stored within the device

 

C O N N E C T O R S

 

 

 

INPUTS

12-pin Phoenix plug-in terminal block

 

OUTPUTS

2 x 12-pin Phoenix plug-in terminal block

 

RS-232

9-pin DB9 connector

 

RS485

RJ45 connector

 

POWER

3-pin IEC

 

POWER

60 to 250V @ 50/60Hz

 

CONSUMPTION

30 Watts

 

SIZE

(W) 482mm x (H) 44mm x (D) 251mm

 

 

(W) 19ins x (H) 1.75ins (1U) x (D) 9.89ins

 

WEIGHT

3.35kg (7.4lbs)

 

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 © 2008 Martin Audio Ltd.

Due to Martin Audio’s policy of continuing improvement, we reserve the right to alter these specifications without prior notice.

www.martin-audio.com

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