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
E-mail: [email protected]
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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