Owner`s manual
AtlasSound.com – 8 –
Specifications are subject to change without notice.
Owner’s Manual
F6-MF
Multi-Impedance Modular Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333 • Fax: 800.765.3435
Rear Panel Features
1. AC Mains Power Switch
Connectthisgroundedpowercordto120VACcircuitsonly.Seriousdamagemayresultotherwise.ThefusefortheF6-MFisinternalto
the amplifier; only qualified personnel should replace the fuse, if necessary.
2. AC Mains Power Cord
InserttheIECPowerCordintothereceptaclemakingsureitissecurelyplaced.PriortopluggingtheF6PowerCordintoanACsource,
makesuretheACMainsVoltageselectswitchisinthecorrectposition.Seriesdamagemayresultotherwise.
3. AC Mains Select
Prior to plugging the AC Mains Power Cord to an AC source, determine the proper AC Mains voltage the amplifier will see. For voltages
between103V-127V,select115V.Forvoltagesbetween207V-253V,selectthe230Vswitchposition.Note:IftheACMainsVoltage
Switch is in the incorrect position when the power cord is plugged into an AC Mains the unit will trigger a protect circuit and the Over
VoltageLEDwillilluminate.
4. Over Voltage LED
IftheOverVoltageLEDisilluminatingRed,itmeanstheACMainsVoltageSelectSwitchisintheincorrectpositionortheACMains
Voltageexceededtheoperatingrange.Note: Unplug the AC Power Cord prior to changing the switch selection.
5. Standby LED
IftheStandbyLEDisilluminatingOrange,itmeanstheF6-MFisinEnergySaveMode.TheF6-MFisshippedwithashuntacrossthe
CCcontactstoactivatetheampfromStandbymode.Thisistobeusedwhenremoteactivationisnotrequired.IfthestandbyLEDis
notilluminating,theFrontPanelBlueLEDPowerLEDwillbeilluminatedandtheFMModules'ReadyLEDs(Green)willbeon.This
means the amplifier is ready to use. If not, check the AC Mains and Power Switch.
6. System Activation
TheF6-MFisactivatedviatwomethods.ContactClosure,shortingtheCCandGroundTerminaltogetherorbyapplyingaDCVoltage
5–24V(+V)andtheGround(–).Note:FortheF6-MFtoturnON,theACMainsPowerSwitchneedstobeinthe"ON"positionandthe
contact closure must be shorted or have a DC voltage applied.
7. Balanced Input Connections
Balancedlinelevelsignalsconnecttothe(+)(–)and(G)terminals.Note: If you are connecting an unbalanced line level input, tie (short)
the(G)and(–)terminalstogether.
8. FM250 Amplifier Module Channel Slots
TheF6-MFisshippedwithnoFM250amplifiermodules.Thereare6emptycardslotsinaF6-MF.Eachslotisshippedwithablank
filler panel covering each unoccupied slot. Note: If a slot is not being used, it is important that the blank cover plate is installed. Without
blank cover plate, amplifier cooling issues may occur.
9. Optional Accessory Input
This slot is for optional accessory items such as the FM-AMIX and the FM-IPDSP. Please refer to their manuals for installation procedure.
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