EAW MX8700 User manual

PRELIMINARY DATA
EASTERN ACOUSTIC WORKS
One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email [email protected] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# 888xxx(A) MX8700/2 PP Feb2001 • Printed In USA
SPECIFICATIONS MX8700
DESCRIPTION
The MX8700 Digital Electronic Processor is designed to optimize
the performance of a wide range of EAW loudspeakers. It is a cost
effective, single-rack space, processor designed for use with bi-
amplified and tri-amplified loudspeakers with special facilities for
adding two channel or mono-summed subwoofers. The MX8700
has two input channels each with four outputs. Its functions in-
clude crossover, equalization, delay, polarity and limiting. Con-
figurations are downloaded to the MX8700 using EAW Windows soft-
ware via an RS-232 interface. Once downloaded, confirgurations
cannot be altered by the end user removing the burden of field set-
up and assuring optimum loudspeaker performance. There is a full
complement of level and status indicatores plus individual output
mutes for setting-up and troubleshooting systems.
FEATURES
- Parameters fully protected from tampering
- Digital processing for precise settings
- 6 bands of parametrice EQ on each input, 5 on each output
and 7 crossover types ensure optimum performance
- Active balanced input and outputs with XLR connectors
CLOSE COUPLED ELECTRONIC PROCESSINGTM
The concept of Closed Coupled Electronic ProcessingTM (CCEPTM) is
central to the EAW design process. EAW engineers integrate elec-
tronic signal processing into the total loudspeaker system but we
recognize that electronics can only improve performance after all
other electro-mechanical factors have been optimized. The MX8700
processor incorporates functions such as complex asymetrical cross-
over filters, delay compensation and parametric equalization. All
of these parameters are configured for a particular loudspeaker sys-
tem in an interactive design process using EAW’s rapid data acqui-
sition faciltiy and in-house multi-platform computer network.
CONFIGURATIONS
The MX8700 processor is either factory or field configured
(Close CoupledTM) for a particular EAW loudspeaker system.
If you have any questions please contact an authorized EAW
sales agent or the factory to be certain that you have cor-
rectly configured the processor to your system.
SPECIFICATIONS
Input Type Two (2): Active balanced
Input Impedance 18k Ohms
Max. Input Level +20dBu
Output Type Eight (8): Active balanced
Output Impedance 112 Ohms
Max. Output Level +20 dBu
Frequency Response ±.25dB, 20Hz-20kHz
Total Harmonic Distortion <.01% @ 1kHz, +20dBu
Dynamic Range .110dB, 2-20kHz, unweighted
Output Noise <-90dBu, unweighted
EQ Filters
EQ Filter Type Parametric Bell and Shelving (6dB/
oct. & 12dB/oct.)
EQ Filter Number 6 per input, 5 per output
Q .25 to 64
EQ Frequency Resolution 1/24 octave
Level Range +15/-30dB, 0.1dB increments
Crossover Filters
Crossover Filter Type Butterworth, Bessell,Linkwitz-Riley
Slope 12dB/oct., 18dB/oct., 24dB/oct.
Number 2 per output
Frequency Resolution 1/24 octave
Level Range +12dB/-infinite, 0.1dB increments
Limiter
Limiter Threshold -20dBu to +20 dBu, idb increments
Limiter Ratio 1.2;1, 1.5;1, 2;1, 3;1, 4:1, 6;1, 10:1,
20;1, inf:1
Limiter Attack 1 ms/dB, 100 ms/dB, 500 ms/dB
Limiter Release 20 ms/dB, 100 ms/dB. 500 ms/dB
Delay
Input Delay 300 msec max., 1 msec increments
Output Delay 20 msec max., 20 us increments
Digital Processing
A/D converters 24 Bit, 128x oversampling
D/A Converters 24 bit, 128x oversampling
Sample rate 48kHz
DSP Processing 24 Bit, 56 Bit Accumulator, 200
MIPs
Propagation Delay 1.46 msec

Acoustic Performance Partnership Eastern Acoustic Works MX8700
One Main Street, Whitinsville MA, 01588 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • Web http://www.eaw.com • email [e-mail]
SPECIFICATIONS MX8700
PRELIMINARY DATA
DIMENSIONAL DRAWINGSREAR PANEL
Power requirements 120v version: 90-125VAC, 50-60Hz,
24w
240v version: 180-250VAC, 50-60Hz,
24w
Weights pounds kilograms
Net Weight 8.5 3.9
Shipping Weight 10 4.5
Dimensions inches millimeters
Length 19 483
Height 1.75 44
Depth 6 152
Environmental 40-120 degrees F, noncondensing
Digital Control RS232 on 9-pin Dsub connector at
9600 Band (rear panel only)
SPECIFICATIONS CONTINUED
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Channel A Channel B Channel A Outputs Channel B Outputs
Inputs SUB LOW MID HIGH SUB LOW MID HIGH
POWER
OFF ON
RS232
12 VAC .2A
One Main Street
AC 5 -6 Hz
24W
Whitinsville, MA 1588
PUSH
PUSH PUSH PUSH