Crown MPX-6TM manual MPX-6 Mixer, @crown, Computerized Features, Manual Mixing In Real Time

@crown® * System® Product Reference

•May serve as interface for com- ponents connected to the Crown Bus.

•Components supported include other MPX units, SMX-6 mixers, AMB-5 mixers, PIP-AP, PIP-APM, PIP-APS, all MRX matrixers, and the White 4700 Series EQ.

•No support for U-Code protocol.

Setup Switches:

•The IQ Address is set by an 8 seg- ment DIP switch. Valid address values are 1 to 250 (0 and 251-255 are reserved for system usage).

•RS232/422 Standard switch must be configured appropriately for use of the serial port.

•Baud is adjustable via DIP switch up to 19200. This setting must be config- ured properly for use of the serial port.

•Parity is set ON or OFF and ODD or EVEN via DIP switch. Normally set to OFF, this setting only applies to use of the serial port.

Memory Backup:

The unit is equipped with a recharge- able battery. The unit has 60 day memory backup on full charge.

COMPUTERIZED FEATURES

DSPI:

The Data Signal Presence Indicator (DSPI) light on the front panel flashes to indicate data traffic addressed to or from the unit. This light may be forced on from software.

Aux Port:

The aux port on the mixer is used tosend or receive a control voltage. From soft- ware you may turn the aux output on or off. IQ software is also able to sense the status of the aux input and is capable of taking independent action based on a sensed input.

Bus Output Relays:

Audio bus outputs are identical to their respective main outputs in every way except for the addition of software con- trolled isolation relays.

VCA Gain Control:

The heart of the MPX is its functionality as a mixer. Each of the six main inputs may be routed to either or both outputs by VCAs under processor control. The VCAs offer a control range of –100 to +25 dB.

MPX-6 Mixer (Page 3 of 3)

MANUAL MIXING IN REAL TIME

All setup is accomplished with IQ soft- ware from a PC. You may make changes from software that affect VCA gain in real time. Gain may also be manipulated in real time from alternate control devices such as a Drone or a third party control device (Ex. AMX, Crestron, Interface Controls, etc.). Once VCA gains are set from the PC (or control device) the pro- cessor maintains that gain structure un- til it receives an instruction to change.

SYSTEM LEVEL INFORMATION

Communication:

In an IQ System the basic communica- tion structure is based on the premise that it must be able to support a PC be- ing used with several IQ components. The computer is connected to the IQ System interface via RS232. The inter- face converts the protocol from RS232 to Crown Bus media and back again. In a small system or a single MPX system the MPX itself may serve as the system interface. The IQ-INT II, IQ-PSI, Drone, SMX-6, AMB-5 and MPX-6 are all com- ponents which may serve as a system interface for an MPX-6. The Crown Bus is a serial data loop carrier of IQ com- mand protocol. Crown has implemented it as a two wire twisted pair current loop to allow for low cost long distance con- nections. For very long loops (over 1000 feet) data repeaters (IQ-RPT) or fiber optic cable may be used to connect equipment rooms that are some dis- tance apart. The Crown Bus itself does not carry audio.

U-Code Protocol:

U-Code is new form of IQ command protocol developed for enhanced new product and third party product devel- opment. At this time the MPX-6 firmware is not written in U-Code. Although it may be used in systems with U-Code prod- ucts, the MPX-6 may not be used as system interface for U-Code products.

Software:

Several IQ Software packages are avail- able to communicate with an MPX-6. Each unit is shipped with basic DOS software which allows you to communi- cate with the SMX-6, AMB-5, MPX-6, and MRX Matrixer units. More advanced software includes the Turbo or Sys- Config software packages. Turbo is a

DOS program that includes powerful graphics support and support of the full IQ product line. Sys-Config is an ad- vanced package which has security, scheduling, alert reporting, and other powerful features plus the power of Turbo built in.

PC Requirements:

The computer you select for use with your IQ System is very important. Exact minimum requirement vary depending on the software package being used, but for the more advanced software your machine should at least be a 486SX/33 with the following: 4 MB RAM, 16550 UART for the com port used by IQ, DOS 6.2, Mouse (with DOS driver, third but- ton features supported). In most cases Turbo software will operate as a DOS application from Windows,® including Windows 95.®

SPECIFICATIONS

Maximum Input Level (Mic): +7 dBu.

Maximum Input Level (Line): +32 dBu.

Phantom Power: +44 VDC.

AC Power: 120/240 VAC 50/60 Hz.

Common Mode Rejection: 55 dB: 60 to 1 kHz

typical; 45 dB: 20 to 20 kHz.

Frequency Response: +0/-1 dB, 20 to 20 kHz.

THD: <0.05% at +4 dBm output; <0.15% at +20 dBm output 20 to 20 kHz measured at mic input with 40 dB gain.

Noise: Output noise all inputs off is –80dBu (106 dB below rated output); output noise with one line input at 0 dB is 80 dB; equiva- lent input noise at mic input with 46 dB of gain and 150 ohm source is –125 dBu. Note that noise specs are typical, unweighted, and 20 to 20 kHz.

Crosstalk: Adjacent inputs/outputs at 1 kHz better than –80 dB; adjacent inputs/outputs 20 to 20 kHz better than –65 dB.

Guaranteed Excellence

@crown

Crown International, Inc.

Professional Audio Division

PO Box 1000

Elkhart, IN 46515-1000

Ph. 800-342-6939/219-294-8200

Fax. 219-294-8301

Trademark Notice:

Algo,™ Distributed Intelligence,™ and MPX-6™are trademarks, Crown® and IQ System® are regis-

tered trademarks of Crown International Inc.