Owner's Manual

WARNING
• TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THIS PLUG WITH AN EXTENSION
CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO
PREVENT BLADE EXPOSURE.
• TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR
MOISTURE.
• TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE PLUG TO WIDE SLOT, FULLY IN-
SERT.
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.
Theexclamationpointwithinthe
equilateraltriangleisintendedtoalert
theusertothepresenceofimportant
operatingandmaintenance(servicing)
instructionsintheliterature
accompanyingsuppliance.
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.
IMPORTANT SAFTEY INSTRUCTIONS
1.Readtheseinstructions.
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
tintoyouroutlet,consultanelectricianforreplacementoftheobsoleteoutlet.
10.Protectthepowercordfrombeingwalkedonorpinchedparticularlyattheplugs,conveniencereceptacles,andat
thepointwheretheyexitformtheappliance.
11.Onlyuseattachmentsoraccessoriesspeciedbythemanufacturer.
12.Unplugtheapparatusduringlightningstormsorwhenunusedforlongperiodsoftime.
13.Referallservicingtoqualiedpersonnel.Servicingisrequiredwhentheapparatushasbeendamagedinanyway,
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
andultra-lowdistortionoutput,theMXseriesMulti-ZoneAmpliersprovideunmatchedsoundqualityforanyaudiosystem.
Thermal Protection
All MX series ampliers are designed with special circuitry to safeguard the amplier under a thermal overload
condition.Thermalprotectionmodewillonlyengagewhentheunithasbeenrunathighvolumeforextendedperiodsoftime
withoutadequateventilationand/orwhenspeakerimpedancesarebelowtheminimumlevelsfortheamplier.Inthermal
protectionmodetheamplierwillautomaticallystopoutput.Ifthisfaultoccurs,turnotheamplier,andcheckthatthe
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.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL