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2.1 440B Fader Module
2.2 Mute/Solo Section
The 548B Channel module provides a comprehensive set of solo and mute controls including:
• Channel on/off switch
• AFL, PFL, and SIP Solo functions
• Solo Safe
• Mute Group assignment
The controls for the 548B Mute and Solo function as follows:
SAFE: Activates the Solo Safe mode for that channel
• The SAFE button protects that channel from being muted when the Solo-In-Place
function is active and another channel or an Echo Return is soloed.
• Illuminates when engaged
MUTE: Cuts the primary audio output
• The MUTE button is the on/off switch for the primary channel output and is located post-
fader in the signal flow
• The MUTE button is the numbered button located just above each fader
• Illuminates in red when engaged
The 440B Mono Fader is the primary output level control for the channel.
The channel Fader controls the output to the:
• Direct Output
• Summing Buses
• Program Bus
• Post-fader Echo/Auxiliary Sends
• When the Fader is set to 0dB, the level is at unity gain
Each 440B Mono Fader module contains eight mono Alps 100mm faders and
supports the eight channel modules mounted above it
SOLO: Activates the selected solo function
• The following solo functions may be selected via the 845B
Central Facilities Module:
o Pre-fader Listen (PFL): Non-destructive, mono
o After Fader Listen (AFL): Non-destructive,
mono/stereo
o Solo-In-Place (SIP): Destructive, panned, post-fader
• Illuminates in yellow when engaged
NOTE: PFL is the default solo mode.
NOTE: Channels and Echo Returns must be assigned to the
Program Bus for Solo-In-Place for their mutes to activate when
other channels or Echo Returns are soloed.
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