Pafl - ALLEN & HEATH SQ-5 Reference Manual

12.7 PAFL

The Pre/After Fade Listen settings affect the behaviour of the PAFL bus which is
routed to the SQ headphone output and displayed on the 12 segment LED meter as
well as being routed to the SQ's RTA.
Press the 'Setup' screen key, then touch the 'Audio' tab, followed by the 'PAFL' tab
to display and adjust settings.
•
Touch any button on the left of the screen to turn an option on or off.
Additive (On) = Allows multiple channel strips to be routed to the PAFL bus at
once.
Sel Follow PAFL (On) = Pressing a PAFL key will also select ('Sel') a channel.
PAFL Follow Mix (On) = When PAFL is active on the master/mix channel strip,
the channel being routed to PAFL will follow mix selection.
Input Override Mix (On) = When PAFL is in additive mode, pressing the PAFL
key of an input channel unassigns mix channels from the PAFL bus.
Unassigning all input channels reassigns the previously assigned mixes.
LR to PAFL (On) = When no other PAFL routing is active, the main LR mix is
routed to the PAFL bus.
Output AFL (Off) = Output channels routed to the PAFL bus are pre-fade.
(Pre-Fade Listen)
Output AFL (On) = Output channels routed to the PAFL bus are post-fade.
(Post/After Fade Listen)
Input AFL (Off) = Output channels routed to the PAFL bus are pre-fade.
(Pre-Fade Listen)
Input AFL (On) = Input channels routed to the PAFL bus are post-fade.
(Post/After Fade Listen)
The PAFL delay can be used to align the PAFL bus when, in a live sound
environment, the naturally delayed sound from a sound system can be heard at the
same time as the otherwise instant signal fed to headphones or monitors, causing
phase issues or an audible delay.
•
Touch the millisecond value and adjust using the touchscreen rotary.
PAFL bus delay = 0ms to 682.6ms
The PFL trim attenuates the level of PFL signal routed to the PAFL bus. It does not
affect AFL.
•
Touch the trim value and adjust using the touchscreen rotary.
PFL Trim = -24dB to 0dB
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Reference Guide
V1.0.1