User Manual

– 5 – 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: [phone] • Fax: [phone]
Introduction
Congratulations and thank you for purchasing the Atlas Sound MA40G/MA60G mixer amplifier. This new and innovative professional
grade product has been designed from the ground up to include the important features that professional installation personnel require to
meet or exceed their customer’s expectations. Small and compact, and engineered for reliability, the Atlas Sound MA40G/MA60G will
provide years of service and flexibility in today’s background music and paging applications.
Features
 • MA40G-40Winto70.7V/100V
 • MA60G-60Winto70.7V/100V
 • OneBalancedMic/Line/TelInputw/PhantomPower
 • 2Unbalanced,SummingLineLevelInputs
 • VariableMuteSensitivityControlforInput1
 • ContactClosureMuteTerminals
 • RearMountedDipSwitchAllowsMuteReceiveforInputsTwoandThree
• GlobalPowerSupply,100VAC-240VAC~50/60Hz
 • OptionalLevelControlSecurityCover
Applications
TheAtlasSoundMA40GandMA60Garetheperfectchoicefordistributedbusinesspagingandbackgroundmusic(BGM)systems,
smalltomediumspeechprivacysystemsandinapplicationswheremusiconhold(MOH)pluspagingisrequired.
Front Panel Description
1. Power LED
This LED illuminates when the AC Mains are plugged in.
2. Limit LED Indicator
The LIMIT LED will illuminate when the MA40G/MA60G is in a clipping condition, caused by excessively high input levels
or a GAIN control is turned up too high. An occasional flash is OK. Check that the proper signal level is being fed into the
inputs and/or turn the input gain down until the LED is no longer illuminated. Refer to Limit LED & Load Conditions for
more information.
3. Signal LED
When the signal LED illuminates, this indicates that input signals connected to the amplifier are capable of
driving the MA40G/MA60G to full power.
100V -240V ~ 50Hz/60Hz 750mA
VOX
Sense
Input 2 Input 3
40 Watts
70.7V/100V
Speaker Out
Input 2 Mute
On Off
Phantom Power
Input 1
Input 3 Mute
Off
On
Off
On
Line
Mic
Unbalanced
Remote
Mute
Input 1
Balanced Input
L
R
0
10
1601 Jack McKay Blvd
Ennis, TX 75119
800.876.3333
AtlasSound.com
Power Limit Signal
Level Level Level
Input 1 Input 2 Input 3
MA40G Front Silkscreen Artwork
1
4
5
3 6
2