Art-pro-audio MX225 - MX225 Zone Distribution Mixer User Manual download pdf

ART – MX225

Stereo Dual Source Five Zone Distribution Mixer

OPERATION MANUAL

INTRODUCTION

The MX225 is designed for remote volume control of multiple amplifiers or powered speakers in a distributed audio system. Two stereo sources are available to

each of five output zones. Each source input pair handles separate left and right balanced line level signals. Each output zone features independent level control

from inputs 1 and 2, stereo/mono selector with mono indicator, LED level metering, and left and right balanced line level zone outputs. All audio connections are

balanced XLR. The built in power supply and single high 19” rack mount format allows for easy installation and reliable operation.

What Is A Zone Distribution Mixer?

The use of multiple power amplifiers, each driving one or more speakers, or multiple powered speakers is now commonplace in most distributed audio systems.

Whether the installation is a club, a hall, a restaurant, a church, an arena, an office, a recreational facility, or even a portable PA with distributed speakers,

systems like this offer the potential to balance the audio level throughout the coverage area. You can adjust the volume of every amplifier or powered speaker,

either in groups or individually, from a centralized location with a zone distribution mixer like the Model MX225. Basically the input of the Model MX225 is

connected to the PA mixer’s line-level output (the Model MX225 will accept the output of two mixers or stereo signal sources) and the power amps or powered

speakers are connected to the Model MX225s zone outputs. As you adjust volume for each zone within the system the independent LED level metering gives a

quick visual reference to the level variations throughout the system.

FEATURES:

• Left and right balanced Source 1 and 2 Inputs, accepts stereo or mono signal sources.

• Source 1 and 2 input channels are internally routed to all five Zone channels.

• Five Zone channels each feature Source 1 and 2 level controls and left and right balanced output XLR connectors.

• Stereo/Mono selector on each zone sums left and right into Mono mode when engaged.

• Mono indicator LED on each zone channel indicates that mono has been selected.

• Five LED level metering (-25, -20, -15, -10, Clip) on each zone channel indicate signal activity for each zone.

• Source 1 and 2 indicator LEDs show you when signal is present in each source channel.

SPECIFICATIONS:

Input Connections: XLR-F balanced (4)

Output Connections: XLR-M balanced (10)

Input Impedance: 47k Ohms

Output Impedance: 200 Ohms

Maximum Input Level: +20dBu balanced

Maximum Output Level: +24dBu balanced

Maximum Gain: +6dB

Signal to Noise Ratio: >90dB typical

THD: < 0.05% typical

Power Requirements: USA: 105 to 125 VAC / 50-60Hz, 15 Watts typical

Dimensions: (HxWxD in) 1.75 x 19.0 x 7.25

Dimensions: (HxWxD mm) (44.5 x 483 x 184)

Weight: 5.34 lbs. (2.42kg)

OPERATION

a) Verify proper voltage selection on the IEC style power connector for your location. Connect the AC cord to a grounded AC outlet.

b) Using balanced XLR cables connect the balanced stereo output of the primary audio source (mixer) to the MX225’s left & right Line 1 In source connectors.

Alternately a mono signal source can be connected to either L or R input. Repeat the process with Line 2 In source for an additional mixer or other audio source.

c) Using balanced XLR cables connect the Zone Out connectors to the inputs of the appropriate power amplifiers and/or powered speakers.

d) In many situations the Stereo/Mono selector would be in the Mono position. There are two reasons for this. Firstly, stereo separation works well in the home

where the listener can be situated more exactly between the speakers to hear each one equally. But away from that environment in a club, restaurant, office, rec

hall, etc, listeners often find themselves closer to one speaker than the other. Stereo separation can cause a situation where you primarily hear just part of the

program e.g., guitar but no keyboard or vice-versa. With the system in Mono mode, all of the program music comes out all of the speakers. Secondly, if you

connect a mono source to one of the Left or Right Source Input connectors then switch one or more zones into Stereo, that source will only come out the

amp/speakers connected to the Left or Right Zone outputs. People not situated close to those speakers may not be able to hear that source at all.

e) Adjust the Source level controls to produce the desired volume in each area. If a CLIP indicator lights, reduce either that Zones level control, or the output of

the signal source to prevent distortion.

f) The LED level indicators in each Zone show the relative signal level for that Zone.

g) The Source Indicator 1 and 2 lights show signal activity of each source.

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ART – MX225 1

Summary of Contents

Page 1 - ART – MX225

ART – MX225 Stereo Dual Source Five Zone Distribution Mixer OPERATION MANUAL INTRODUCTION The MX225 is designed for remote volume control of

Page 2

WARNINGS All operating instructions should be read before using this equipment. To prevent the risk of electrical shock, do not remove the cover or t

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Art-pro-audio MX225 - MX225 Zone Distribution Mixer User Manual

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