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A1240
INSTALLATION MANUAL
5. Setup
Setting Channel Levels
The A1240 features independent Level Adjustment Pots
for each of its twelve channels. Use a small Phillips
screwdriver to independently adjust each channel of the
amplifier for the specific speakers and environmental
conditions of the area it is powering. Turning the pot
clockwise increases the level, while turning it counter-
clockwise decreses the level. Factory default is 50%.
Set the levels by first lowering them all the way down,
then raise the volume of any keypads or volume controls
to maximum. Slowly increase the level of the channel
being adjusted by turning the potentiometer clockwise
until the channel begins to distort, then reduce the level
slightly (turn counter-clockwise) until distortion is no lon-
ger present. Follow this procedure for each channel.
1
1
LEVEL
LEVEL
Factory Default = 50%
Page 18
2
2
LEVEL
LEVEL
E L A N H O M E S Y S T E M S
Audio Sense
When Audio Sense is enabled (AUDIO SENSE button de-
pressed), the presence of audio on a particular line-level
audio input will automatically un-mute the corresponding
speaker-level audio output. Once the audio output is ac-
tive, the SYSTEM TRIGGER OUT will also become
active. If Audio Sense is enabled, it will mute a chan-
nel once an audio signal is absent for a period of two
minutes.
AUDIO
AUDIO
SENSE
SENSE
Factory Default = OFF
© ELAN Home Systems 2005 • All rights reserved.
ON
ON
OFF
OFF
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