Martin Audio DJ Equipment Engineer 818 User Manual

Engineer 818  
Installed system digital management processor  
PRELIMINARY DATA  
features  
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8 input, 8 output freely routable signal path  
8-band fully parametric EQ on every input/output  
Microphone compatible inputs with phantom power  
Highpass and lowpass crossover filters on every  
output with slopes up to 24dB/octave  
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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  
technical specifications  
INPUTS  
Eight electronically balanced  
IMPEDANCE  
OUTPUTS  
SOURCE IMPEDANCE  
MIN. LOAD  
MAX. LEVEL  
> 25K ohms  
Eight electronically balanced  
< 60 ohms  
600 ohms  
+20dBu  
RS232 interface for PC programming and control  
RS485 interface for external remote control  
FREQUENCY RESP.  
DYNAMIC RANGE  
DISTORTION  
INPUT GAIN  
OUTPUT GAIN  
PA R A M E T R I C E Q UA L I S AT I O N  
FILTERS  
FILTER TYPES  
FILTER GAIN  
FILTER Q/BW  
FREQUENCY RANGE  
H I G H A N D LO W PA S S F I LT E R S  
FILTERS  
+ 0.1dB 8Hz - 20kHz  
> 110dB Unweighted  
0.0035% @ 1kHz 0dB  
Adjustable +40dB to -inf. on 0.25dB steps  
Adjustable +12dB to -inf. on 0.25dB steps  
applications  
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Fixed Installation loudspeaker system management  
Automatic control of programme level and tonal quality to  
compensate for variations in programme sources  
8 bands per input, 8 bands per output  
Bell, Lowshelf, Highshelf, Notch, Bandpass  
+12dB to -45dB in 0.25dB steps  
User selectable 0.05 to 20 / 20 to 0.05  
20Hz - 20kHz  
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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.  
One high and one lowpass for each output  
20Hz - 20kHz  
Bessel, Butterworth, Linkwitz-Riley 12/18/24 dB/oct  
FREQUENCY RANGE  
RESPONSE  
L I M I T E R S  
LIMITER THRESHOLD  
ATTACK TIME  
RELEASE TIME  
B AS S C R E AT O R A L G O R I T H M  
PLACEMENT  
FREQUENCY RANGE  
PARAMETERS  
E N G I N E E R A L G O R I T H M  
PLACEMENT  
OPERATING RANGE  
P R E S E T S  
+20dBu to -43dBu  
0.3 to 45ms  
Incorporating a broad range of standard facilities; gain, EQ, limiting, time  
delay and an 8 x 8 routing matrix, the Engineer features the BassCreator  
and Engineer algorithms. These unique, innovative functions offer  
solutions to some of the most common operational and environmental  
problems encountered in audio system design.  
4.8 to 720ms  
Freely insertable on any output  
Virtual 30Hz to 120Hz  
Drive, mix level  
Freely insertable on any input  
-45dB to +22dB  
overall dimensions  
PRESET TYPES  
PRESET NUMBER  
S E C U R I T Y  
System, Routing, Noise Emission, Engineer  
32 user-accessible presets  
LEVELS  
STORAGE  
C O N N E C T O R S  
3 security levels with user assignable passwords  
Security settings are stored within the device  
INPUTS  
OUTPUTS  
RS-232  
2 x 12-pin Phoenix plug-in terminal block  
2 x 12-pin Phoenix plug-in terminal block  
9-pin DB9 connector  
RS485  
POWER  
RJ45 connector  
3-pin IEC  
POWER  
CONSUMPTION  
SIZE  
60 to 250V @ 50/60Hz  
30 Watts  
(W) 482mm x (H) 44mm x (D) 251mm  
(W) 19ins x (H) 1.75ins (1U) x (D) 9.89ins  
3.35kg (7.4lbs)  
WEIGHT  
Century Point, Halifax Road, Cressex Business Park,  
High Wycombe, Buckinghamshire HP12 3SL, England.  
Telephone: +44 (0)1494 535312 Facsimile: +44 (0)1494 438669  
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.  
 

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