Owner's Manual

– 15 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual
AA120G & AA240G
Commercial Mixer Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Choose Output Wire and Connectors
Amplifier Output Connections: Slip the cable lugs under the output screw terminals and tighten. Slide the supplied non-touch cover
over the output connections from top to bottom to cover them. AtlasIED recommends using high-quality, two-conductor, heavy gauge
speaker wire and connectors. Crimp-on spade lugs may be used for the output connectors. To prevent the possibility of short-circuits,
wrap or otherwise insulate exposed loudspeaker cable connectors. Cover the output connections with the supplied clear non-touch
cover by sliding the cover on.
Note: Custom wiring should only be performed by qualified personnel. Class 2 wiring is required.
Caution: Never use shielded cable for speaker wiring.
Outputs
Maintain proper polarity (+/–) on amplifier output connectors. Connect the Amplifier Output screw terminals to the loudspeaker loads.
Use terminals marked COM and 70V or 100V for constant voltage loudspeaker loads. Use terminals marked COM and 4Ω for either a
4Ω or 8Ω speaker load. Note: The amplifier power output is 50% of the 4Ω power output. Connect the COM terminal to loudspeaker
negative (–) lead; connect one of the other terminals to loudspeaker positive (+) lead. Cover the output connections with the supplied
clear non-touch cover by sliding the cover on.
Operation
Powering Up
1. Turn Off any equipment connected to the Preamp Output connector.
2. Plug the amplifier’s power cord into a 3-wire grounded AC outlet.
3. Turn down the input volume controls.
4. Turn down the master volume control.
5. Turn on the Power switch. The Power indicator should glow.
6. Turn the input volume controls in use about
3
/4 up.
7. Turn up the master volume control(s) until the desired loudness or power level is achieved.
8. Touch up the input levels as needed for music and voice.
9. Turn on any equipment connected to the Preamp Output connector.
10. Disconnect the power cord before making any wiring or installation changes.
Amplifier Output
Connections