MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL

MULTI-ZONE

DIGITAL AMPLIFIER

MX SERIES

WARNING

SERT.

equilateraltriangleisintendedtoalert

Thislightingashwitharrowhead

symbol,withinanequilateraltriangle,

isintendedtoalerttheusetothepres-

enceofun-insulateddangerousvoltage

withintheproductsenclosurethatmay

beofsucientmagnitudetoconstitute

ariskofelectricshocktopersons.

2.Keeptheseinstructions.

3Readallwarnings.

4FollowallInstruction.

5.Donotusethisapparatusnearwater.

6.Cleanonlywithdrycloth.

7.Donotblockanyventilationopenings.Installinaccordancewiththemanufacturersinstructions.

8.Donotinstallnearheatsourcessuchasradiators,heatregisters,stoves,orotherapparatus(includingampliers)that

poduceheat.

9.Donotdefeatthesafetypurposeofthepolarizedorgroundingtypeplug.Apolarizedplughastwobladeswithone

widerthantheother.Agroundingtypeplughastwobladesandathirdgroundingprong.Iftheprovidedplugsdoesnot

suchaspowersupplycordorplugisdamaged,liquidhasbeenspilledorobjectshavefallenintotheapparatus,the

apparatushasbeenexposedtorainormoisture,doesnotoperatenormally,orhasbeendropped.

Introduction

TheOSDAudioMXSeriesMulti-ZoneAmpliersareidealforaddingadditionalpowerindistributedaudioapplicationsor

combining with home theater systems. The MX880 provides8channels,MX1280provides 12 channels and MX1680

provides16channelsofdigitalamplication.AllMXSeriesmodelsincorporatefeaturessuchasbridgemodeoperation,

global and independent zone triggering, audio sense circuitry with delay time per zone, two Bus Inputs/Outputs and

independentlineinputsperzonetomeetthewiderangeofaudioapplicationsandprojects.AllMXSeriesampliersarerated

at50wattsperchannelinto8ohmsand80wattsperchannelinto4ohms.WiththeStereo/BridgeswitchinBridgemode,

eachzoneofchannelsarecombinedforahigherpoweredmonooutputof160wattsinto8ohms.Withhighperformance

speakerimpedanceratingisabovetheminimumrating.Alsocheckforadequateventilationaroundtheamplierandmake

adjustmentsifnecessary.Oncetheunithascooledtosageoperatingtemperatures,theampliermaybepoweredbackon.

Protection Circuitry

SpecialcircuitryhasbeendesignedintotheMXSeriesMulti-ZoneAmpliertosafeguardunderashort-circuitcondition.

Afaultyspeakercanalsocauseashortcircuitcondition.TheZoneLEDindicatorwillblinkrapidlybetweenredandblue.

If this fault condition occurs, turn o the amplier and check speakers for short circuit conditions when appropriate.

Installation

TheMXSeriesMulti-ZoneAmplierscanbeplacedonashelf,aspartofanequipmentrack,oronatableorcabinet.

During installation, keep in mind that the amplifers require proper clearances for ventilation and heat dissipation.

Theamplierwilltaketworackspaceswiththefeetremoved.

Specications

50W/Channel,1KHzinto8Ohms,OneZoneDriven

160W,1KHzinto8ohms,Bridge

MX880:8Channels,4Zones

MX1280:12Channels,6Zones

MX1680:16Channels,8Zones

Signal-to-NoiseRatio:>90dBA-weighted

Frequency Response:20Hzto20KHz+1.7/-1dBat1Woutputinto8Ohms

Input Sensitivity:600mVfor80W@1KHz4OhmOneZone

  700mVfor50W@1KHz8OhmOneZone

MX880: 100-120VAC60Hz600WMax

  220-240VAC50Hz600WMax

MX1280: 100-120VAC60Hz900WMax

  220-240VAC50Hz900WMax

MX1680: 100-120VAC60Hz1200WMax

  220-240VAC50Hz1200WMax

MX880: 100-120V/T5A,250V

  220-240V/T2.5A,250V