Explaining The Controls; Volume; Sensitivity; Delay - Russound AB-4 Instruction Manual

5. Explaining The Controls

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5.1 Volume

The Volume controls adjust the left ( L ) and right ( R ) amplifier's audio outputs independently from each other.
Adjust the volume levels until the sound is at the desired level.

5.2 Sensitivity

The Sens adjusts the level of audio signal required to activate the AB-4. Set the sensitivity control to approximate-
ly half way ( 12 o'clock ). Turn on the whole-house audio and turn on the local audio source, monitoring the vol-
ume level. Lower the volume level of the local source to the minimum required to maintain the signal on the AB-
4. Allow the audio to play for a minute to determine if the volume level is sufficient to maintain the AB-4 on the
local source. Once you have made this determination, turn off the local source. The whole-house audio will
switch in according to the delay you have set. To insure the appropriate sensitivity level, you may need to
decrease or increase the sensitivity control. Remember, the sensitivity level should be set so that the proper audio
level activates the AB-4 for the local source.
If the sensitivity is not properly adjusted, random switching from electrical noise may result.

5.3 Delay

To establish the proper delay, with both the local source and the whole-house audio distribution connected, turn
on the whole-house audio, and the local source audio. Listen for the local source audio signal. Turn off the local
source and listen for the whole-house audio to play after a period of time. Adjust the DLY clockwise to increase
the delay or counter-clockwise to decrease. Repeat this until the desired delay is achieved.
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