Atlas Sound specifications INSTALLATION and CONSIDERATIONS Cabling, PA1001G Power Amplifier

PA1001G Power Amplifier Owner’s Manual

INSTALLATION and CONSIDERATIONS

Cabling:

The PA1001G can be used with either balanced or unbalanced sources, and the outputs can be used with either balanced or unbalanced loads, provided the proper cabling is used. A balanced line is defined as two-conductor shielded cable with the two center conductors carrying the same signal but of opposite polarity when referenced to ground. An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the signal and the shield at ground potential.

Balanced Input - Use 2 conductor w/shield for low level signals of 20-22 gauge is best. Maintain the proper polarity,

+ to +, – to – and shield to ground. Note: The ground center pin of the Phoenix connector is common for both channels.

Unbalanced input - For the RCA inputs pre-made RCA cables can be purchased from vendors to simplify interconnection to external devices. For unbalanced signals using the Phoenix connector connect the (–) pin of the amplifier input to the GND center pin and the (+) pin to the positive of the source.

Speaker outputs - Use 2 conductor unshielded wire of the appropriate gage. 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 load value you intend to use.

Audio Sense Control Adjustment (Rear Panel)

The PA1001G can be remotely turned on via the two stereo audio inputs. The PA1001G mains power switch must be on to activate or adjust Audio Sense trigger control. Prior to power on the AC Mains Power Switch of the PA1001G follow the instructions below. Note: Once the PA1001G has sensed audio signal and has triggered on, it will take 15 -20 min for it revert back into sleep mode even when there is no audio present. Also, the PA1001G level controls have no affect on this feature.

1.First select the proper Dip Switch setting to “Sense ON” and “Audio ON”.

2.Set the PA1001G front panel level controls to 12 o’clock position.

3.Then plug a audio component such as a computer, DVD player or CD player into the balanced or RCA unbalanced inputs of the PA1001G. Note: Prior to turning on the AC mains of the PA1001G make sure the source level is turned fully down or off (Mute).

4.By using the potentiometer adjustment labeled “Audio Sense”, rotate fully clockwise. The AC mains Power LED should be Red still.

5.Slowly apply audio signal from audio source until the AC Mains Power LED turns from Red to Blue. Whenever there is an audio signal present at the inputs, the PA1001G automatically switches itself into from standby or sleep mode to amplifying the audio the signal into the room loudspeakers If the PA1001G power LED does not turn from Red to Blue the amp is still in sleep mode. Slowly rotate the potentiometer counter clockwise with audio present until the LED changes from Red to Blue. If the adjustment is fully counter clockwise and the amp is still in sleep mode it may be necessary to increase the audio source output signal. Note: By rotating the potentiometer clockwise (right) the trigger point becomes less sensitive to turn on, meaning it will take more audio signal at the input to turn on the amp.

6.For proper audio triggering some experimentation may be necessary, but once it is set properly the PA1001G will not need readjusting. Check the operation by turning audio source on and off. Note: If the sensitivity is set too high, random switching may occur as the unit senses the residual noise level and may falsely trigger. If this happens slightly rotate the potentiometer clockwise.

7.Adjust the amplifier level controls and audio source to the desired listening level.

	1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
	Telephone: 800.876.3333 • Fax: 800.765.3435
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	Specifications are subject to change without notice.