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MX880

OSD Audio MX880, MX1680 Owner's manual

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  • What is the difference between the MX880, the MX1280, and the MX1680?
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MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
MULTI-ZONE
DIGITAL AMPLIFIER
MX SERIES
MULTI-ZONE
DIGITAL AMPLIFIER
MX SERIES
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
1. Power/Standby LED
ThisLEDlightsredwhenanyzoneisactiveorthe
amplierisinstandbymode.
Front Panel
2. Zone LED
Blue:thecorrespondingzoneispoweredon.
OFF:thecorrespondingzoneiso(standbymode).
Red/Blue:Ashortcircuithappensonthespeakeroutputs
Rear Panel
1. Bus 12VDC Trigger In/Out
TheBus12VDCTriggerInisusedtoactivateallzonesthatare
usingtheBusInputanddisablesotherzonetriggersorsignal
sensingonthosezoneswhenitisused.WhetheBus12VDC
Triggerisused,allBus-controlledzoneLEDswillbeblueandac-
tive.IftheBusTriggerInhas12Vappliedtoit,onlythe12VBus
TriggerOutwillhave12VandtheZoneTriggerOutputswillnot.
2. Bus Inputs/Outputs
TheBusLineInputsareoptionalinputsthatcanbeusedtocon-
nectasinglesourcetomultiplezones.TheBusLineOutputsare
passivepassthroughthecorrespondingoftheBusInputsand
canbeusedtodaisychainthesourcetootherampliersinthe
system.
3. Line/Bus Switch
SwitchesthezoneinputtotheLineInput,BusInput1or
BusInput2.
4. Line Input
TheLineaudioinputforeachzoneisadedicatedsensinginput
thatwillactivatethezonewhenanaudiosignalfromasourceis
present.
5. 12VDC Trigger In/Out (Each Zone)
TheZone12VTriggerInisusedtoactivateaspeciczone.
TheZoneTriggerOutcanbeusedtotriggerother12Vdevices.
Thedelayandaudiosensingarebypassedwhenthe12VZone
TriggerInputisused.WhenaZoneTriggerisactive,thezoneLED
willbeblue.IfnovoltageispresentintheZoneTrigger,theZone
LEDwillbeo.StandbyModeTheamplierwillgointoStandby
modewhenaudiosignalortriggerisnotpresentafter3munites.
6. Speaker Outputs
Theminimumspeakerimpedanceis4ohmsforStereoModeand
8ohmsforBridgeMode.
7. Stereo/Bridge Switch
SelectstheoutputmodeofeachzoneforstereoorBridge
operation.
8. Gain Controls
LeftandRightgaincontrolsforeachzoneadjustthesoundlevel
independently.OnlyusingLeftcontroltoadjustthesoundlevel
whenusedinBridgeMode.
9. Voltage Switch
AC115VorAC230Vdualvoltageselector.
10. AC Input
Applythecorrectvoltagebeforeoperatetheamplier.
Specications
Power Output:
80W/Channel,1KHzinto4Ohms,OneZoneDriven
50W/Channel,1KHzinto8Ohms,OneZoneDriven
160W,1KHzinto8ohms,Bridge
Amplier Channels:
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
Input Impedance:>22KOhmsLineInput
Trigger Inputs / Outputs:BusandZone@12VDC
Zone Line Input:LineIn,BusIn1,BusIn2selectswitchperzone
Bridge Mode:SelectStereoorBridgemodeperzone8Ohmonly
Speaker Connectors:Detachablespeakerterminalssupportupto14awgwire
Delay Time:Whenaudiosignalortriggerisnotpresentafter5munites.
Power Requirements (Switchable):
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
Fuse Rating:
MX880: 100-120V/T5A,250V
220-240V/T2.5A,250V
MX1280: 100-120V/T8A,250V
220-240V/T4A,250V
MX1680: 100-120V/T10A,250V
220-240V/T5A,250V
Dimensions (L x W x H):16.81”x16.14”x3.46”
Weight:
MX880:19lbs.
MX1280:20.5lbs.
MX1680:22.8lbs.
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
MULTI-ZONE
DIGITAL AMPLIFIER
MX SERIES
MULTI-ZONE
DIGITAL AMPLIFIER
MX SERIES
NERO LINK
System Conguration
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
Typical Mode
MXSeriesamplierscanbeconguredasthemainamplierforanaudiodistributionsystemorhometheatersystem.
Whenusedwithanaudiodistributionpreampormatrixprocessor,eachzonecanindependentlydriveoneofseveral
dierentsourcesbyusingeachzone’sindividuallineaudioinputs.Ifthespecifyzoneneedsahigherpower,pleasejust
useBridgedmode.
WhenMX1280orMX1680isworkingasahometheateramplier,theampliercouldsupportuptoa7.1or5.1surround
system,andrecommendusingtheBridgedmodetohavethehigheroutputs.
Bridged Mode
WhentheamplierisinBridgedModeoperation,asinglechannel(theleft)isusedtoprovideahigherpowermono
output.UseonechannelpairtoamplifytheleftchannelbyconnectingtheleftaudiosignaltotheLinputofachannel
pair,settingtheStereo/Bridgeswitchto“Bridge”andconnectingthespeakerasindicatedbelow.Useasecondchannel
pairfortherightchannelbyconnectingtherightaudiosignaltotheLinputofasecondchannelpair,settingtheStereo/
Bridgeswitchto”Bridge”andconnectingthespeakerasindicatedabove.Note:Thethreepositionswitchneedstobe
setto“LineIn”onbothzonesthatarewiredforBridgedMode.
Wiring Instructions - Bridged Mode
• Turnotheamplierandconnectan8-ohmminimumload.
• SettheStereo/BridgeswitchtoBridgedMode.
• FollowtheBridgemodemarkingsonthebackoftheamplier:
Connectthenegativelead(-)ofthespeakercabletotheR–terminal.
Connectthepositivelead(+)ofthespeakercabletotheL+terminal.
• ApplytheLineInfromaudiosourcetotheLeftLineInconnector.
• Powerontheamplier.
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
AC 115V~
Trigger
AC 230V~
In
In1
Out1
In2
Out2
Out
12 0V~6 0H z,12 00 W FUSE T 10AL ,2 50V
23 0V~5 0H z,12 00 W FUSE T 5AL,250 V
Bus
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
Bridge
Trigger
In Out
Vol.LeVol.Ri ght
Line
In
R L
Stereo
Br id ge
L+
L- R-R+
+ -
Line In
Bus In 2
Bus In 1
R L
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
ZONE 7
ZONE 8
NERO LINKNERO LINK
MX SERIES MULTI ZONE AMPLIFIER OWNER’S MANUAL
Source Source
OSDAudio|Brea,CA|osdaudio.com
OSDMXSeriesAmpliersManual.8/19
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