Rear Panel Controls And Connectors - EAW MX8700 Owner's Manual

Digital crossover / signal processors

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Specifications (2 pages)

Table Of Contents

Table of Contents

MX8750 INSTALLATION AND OPERATION

5.1

Configuration and Signal Processing

All configuration and signal processing parameters are accessible and controlled using EAW's MXWare

software program. The program provides an easy user interface to access all MX8750 functions except

Power on/off, Device ID (identification) and Data Select. These functions can only be controlled using the

hardware switches on the MX8750.

WARNING: Using incorrect or improper parameters with a loudspeaker can result in damage to the

loudspeaker. Be sure the settings you make do not exceed the capabilities of the drivers in the

loudspeaker system you are controlling.

5.2

Front Panel Controls / Indicators / Connector

5.2.1 Power LED

POWER

The

LED indicates that the unit is powered and turned on. The power switch is located on the

rear panel.

5.2.2 Input Headroom Indicator

INPUT

The

headroom indicator is a six-segment peak-responding bar graph that indicates the signal level

from -20 dBu to clipping. The headroom indicator monitors the input to the A/D converter, after the input level

control. Ideally, you want the highest peak level to illuminate the +12 dBu segment, but not the CLIP segment.

You can set the level lower than this, but understand that you are reducing the signal-to-noise ratio.

5.2.3 Mute Switches

Each output channel has a

MUTE

LED glows red when that output has been muted. The mutes can be activated using either the

hardware switches on the front panel or using the mute functions in the MXWare program.

5.2.4 Signal Indicators

Each output channel has a

level exceeds the limiting threshold, it glows red at the limit threshold. Note: the

this threshold even when the limiters are bypassed. Occasional flashing red is OK. However, if the

LED is rapidly flashing red or is a steady red a large percentage of the time, the input signal to the loud-

speaker is exceeding the loudspeaker's capability and the volume level should be reduced.

5.2.5 RS232 connector

The DB9-F connector is for connection to a COM port on a computer running EAW's MXWare program.

When two or more MX8750s are linked together, only one processor is connected to the computer. This

connector is wired in parallel with the RS232 connector on the rear panel.

5.2.6 Device ID

This set of 4 dip switches is used to set a unique identification number when linking several MX8750s

together. See Section 5.5 for details.

5.3