Installation manual

E L A N H O M E S Y S T E M S
© ELAN Home Systems 2009 • All rights reserved. Page 21
A12 INSTALLATION MANUAL
Chapter 4: Operations & Settings
Setting Channel Levels
The A12 features independent Level Adjustment Pots for each of its twelve channels. Use a small Phillips screw-
driver 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 decreases
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 longer present.
Follow this procedure for each channel.
1 2
LEVEL LEVEL
Factory
Default 50%
Figure 4-1: Level Adjustment Potentiometers
Audio Sense
When Audio Sense is enabled (AUDIO SENSE button depressed), 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 channel once an
audio signal is absent for a period of two minutes.
AUDIO
SENSE
ON
OFF
Figure 4-2: Audio Sense Button