AMX Delta Series Volume Control, Muting the Volume, Tone Control

Using Matrix Keypads
51
Delta Series Audio Controllers
Volume Control
Control of the system volume is very intuitive because of discrete buttons for the Volume UP and
Volume DOWN command (FIG. 54).
When increasing or decreasing volume, the progression is in 3dB steps when the volume is half (of
maximum) or below. Above the halfway point, the progression drops to 1dB steps so you can fine tune
the adjustment without worry of overdriving speakers by surprise.
 Stepped Volume UP = Press & release VOL UP button
 Stepped Volume DOWN = Press & release VOL DOWN button
 Rolling Volume UP = Press & hold VOL UP button
 Rolling Volume DOWN = Press & hold VOL DOWN button
Muting the Volume
The keypads offer Dynamic Macro control for the sources used in the system. For example the pause
command: If a single zone is accessing the CD player and you decide to mute the zone or turn it off,
selecting the source button for CD will pause the CD player and turn the zone off. If there are multiple
zones accessing the CD player, selecting the source button for CD issues a mute command for that
specific zone and it is turned off while other zones using CD continue to play. The system acts like a
client server, distributing control on a “fair” basis. This makes it easy for the system to share the sources
and stay in sync.
Tone Control
The tone control mode allows the user to adjust Bass, Treble, and Balance on a “per zone” basis.
To enter tone control mode, press VOL UP & VOL DOWN buttons simultaneously until LED’s begin to
cycle in a counter-clockwise motion. This will enable the BASS and BALANCE settings first.
FIG. 54 Volume Control
Volume Keys
At any time during adjustments, if you want to return the settings to default, press and
hold the center keypad navigation button.