User Manual

– 7 – AtlasSound.com

Specifications are subject to change without notice.

Owner’s Manual

MA40G / MA60G

Mixer Amplifier

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: 800.876.3333 • Fax: 800.765.3435

4. Input 3

 Input3consistsofstereosumminginputs,suitableforconnectiontotheoutputofCD/DVDplayers,etc.

5. Mute Sensitivity Control

 VOXMuteSensitivityControladjustshowsensitivethemutesendcircuitryonInput1reacts.Settingthecontrolfullycounter-

clockwise will lower the sensitivity, where a higher amplitude signal will be required at Input 1 to trigger the mute send circuits.

Fully clockwise will raise the sensitivity of the mute circuits, where a lower amplitude signal will trigger a mute send. Careful

 calibrationofthiscontrolmayberequiredtofullyutilizethecapabilitiesofthemutecircuits.

6. 70.7V / 100V Speaker Connections

For loudspeaker connections, follow the labeling paying special attention to the polarity or proceed to the Limit LED & Load

 Considerationssection.Note:Donotshorttheterminalstogetherordamagemayoccur.

7. Global IEC AC Mains Power Receptacle

 TheMAModelssupportglobalpowersourcesfrom100V-240V50/60Hz.Thepackagecontainsacordthathasaninternational

 IECconnectortoa120VUSAtypeplug.ItmaybenecessarytoreplacetheremovablepowercordtomeetyourACmainsplug

 typeusedinyourcountry.Note:ItisnotrequiredtochangethefuseforthedifferentACmainsvoltages.

8. Remote Mute Connector

Shorting the Remote Mute terminals will mute inputs 2 and/or 3, depending on how their dipswitch settings are set for switch

 positions1and2labeled"MuteRec"/"Input2"&"Input3".Inthe"ON" position, the corresponding channel will be muted when

the terminals are shorted together. This connection is usually done via remote switch on a microphone.

Wiring the MA40G/MA60G

SpeakerOutputs-Use2conductorunshieldedwireoftheappropriategauge.Ifyouareunsureaboutthis,contactAtlasSoundTech

Supportat1-800-876-3333.Makesureyouknowhowmanyspeakersyouneedandwhattapvalueyouintendtouse.

Mic/LineInput-2conductorwithshieldforlowlevelsignalsof20-22-gaugeisbest.Maintaintheproperpolarity,+to+,–to–,and

shield to ground.

UnbalancedInputsandOutputs-Pre-madeRCAcablescanbepurchasedfromvendorstosimplifyinterconnectiontoexternaldevices.

Security Cover Option

InordertopreventunauthorizedoperationoftheMA40G&MA60G,optionalsecuritycoversareavailablewhichtaketheplaceofthe

front panel knobs. After the MA amplifier has been installed and is operating as desired, grasp the front panel knobs and pull straight out

fromthefrontpanel.Replacetheknobswithsecuritycovers,AtlasSoundpartnumberMPVCC-5,availableinquantitiesof5.

Rack Mount Kit Option

The MA40G & MA60G can be rack mounted as a single unit or with two units together. To do so a PA702RMK Rack Mount Kit needs to

be purchased from Atlas Sound.

Front Panel Knob Security Cover