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manual abstract
It is designed for use in single or two channel modes with bi-amplified and tri-amplified loudspeakers along with subwoofers. The MX8750 has two input channels each with eight outputs that can be configured in any combination of input to output. Its functions include crossover filters, parametric equalization, shelving EQ, HP and LP filters, delay, polarity and limiting. The range and quantity of processing finctions assures being able to achieve optimum system perfor- Input Type Input Impedance Max. Input Level Output Type Output Impedance Max. Output Level Frequency Response Total Harmonic Distortion Dynamic Range Output Noise Two (2): Active balanced 18k Ohms +20dBu Eight (8): Active balanced 112 Ohms +20 dBu ±.25dB, 20Hz-20kHz <.01% @ 1kHz, +20dBu .110dB, 2-20kHz, unweighted <-90dBu, unweighted The MX8750 is controlled by using EAW software and a Windows PC with an RS-232 or midi interface. There is a full comple- ment of level and status indicatores plus individual output mutes for setting-up and troubleshooting systems. FEATURES - Fully controllable configurations and signal processing func- - Digital processing for precise settings - 6 bands of parametrice EQ on each input, 5 on each output and 7 crossover types ensure optimum performance - Each EQ band is selectable between full parametric or first and second order hi/lo shelving filters - Active balanced input and outputs with XLR connectors 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 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, 1db 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 mance. tions CLOSE COUPLED ELECTRONIC PROCESSINGTM 20 msec max., 20 us increments 24 Bit, 128x oversampling 24 bit, 128x oversampling other electro-mechanical factors have been optimized. The MX8750 Output Delay processor is capable of providing complex asymetrical crossovers, Digital Processing delay compensation, parametric equalization, LPF ands HPF filter- A/D converters ing, shelving EQ and limiting. While all parameters are fully ad justable, the MX8750 can be configured using factory-determined D/A Converters Sample rate 48kHz settings for a particular loudspeaker system. DSP Processing 24 Bit, 56 Bit Accumulator, 200 MIPs CONFIGURATIONS Propagation Delay 1.46 msec The MX8750 processor is 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 correctly configured the processor to your system. EASTERN ACOUSTIC WORKS One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email info@eaw.com • Web EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# 888xxx(A) MX8750/2 PP Feb2001 • Printed In USA TECHNICAL SPECIFICATIONS MX8750 TECHNICAL SPECIFICATIONS MX8750 REAR PANEL Channel A Channel B Outputs Inputs 1 2 3 4 5 6 7 8 MID IN POWER RS232DATA SELECT 120VAC .2A 50-60Hz 24W One Main Street Whitinsville, MA 01588 MIDI OUT Normal Mu t Un t Master OFF ON AC SPECIFICATIONS CONTINUED 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 inches millimeters Length 19 483 Height 1.75 44 Depth 6 152 40-120 degrees F, RS232 on 9-pin Dsub connector at 9600 Band (Front and Rear panel), mid in and out Dimensions Environmental Digital Control Acoustic Performance Partnership Eastern Acoustic Works MX8750 One Main Street, Whitinsville MA, 01588 USA • Phone 508/234-6158 • Toll Free 800/992-5013 • Fax 508/234-8251 • Web • email info@eaw.com ...