Peavey S 4 Operating Manual Download

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8. MIX LEVEL: This control adjusts the level of the channel in the main output. It is a
part of the Automix

™

circuitry and affects priority and sharing ratios. It is

recommended that the gain be set to keep this control between 12 o’clock and full
clockwise. The system is calibrated with this control set fully clockwise.

9. MUTE: This control mutes the channel in the main and direct outputs and removes

the signal from the Automix computer. The Signal/Pk/Mute LED lights red to indicate
that the channel is off.

10. PFL: PFL is an acronym for Pre-Fader Listen. When pressed, this switch sends the
channel signal (picked up before the mix level control) to the headphone circuitry and

output meter for monitoring. This is useful in setting input gain and EQ, pre-checking that the mic is working
and confirming who is speaking on that channel when things get out of control. (Not that it ever happens!)

11. OUTPUT/PFL METER: The output meter array indicates the main output signal level. With the back panel output

control set to 0, this corresponds to +4 dBu at the output connectors. When PFL is active, this meter shows
the level of that channel, and the PFL LED in the
master section lights to indicate that the
headphones and meter are monitoring an input.

12. HEADPHONE OUTPUT: This stereo jack (TRS)

drives the headphones. The level is set by the
headphone level control. Tip=Left, Ring=Right,
Shield=Ground.

13. HEADPHONE LEVEL: This control sets the

headphone volume. The headphone output
normally monitors the main S-4

™

output. If a PFL

button is activated, the PFL LED illuminates and
the headphone output and meter switch to the
PFL bus.

14. +48V LED: Lights to indicate that the phantom mic

supply is on.

15. MIC INPUT: XLR balanced microphone with phantom power.
Because of the wide range of gain adjustment, signal levels from –68
dBu to +22 dBu can be accommodated.

16. LINE INPUT: 1/4" balanced (TRS) 10k Ohm impedance input

can be used with balanced or unbalanced sources. It has 20 dB less
gain than the XLR input and does not have phantom power available.
The mic and line inputs should not be used simultaneously.

17. INS/DIR: This 1/4" jack is switch selected to function as either a
channel insert or a direct output connector. When the selector
switch is set to DIR position, the unbalanced output signal is post
EQ, post fader and post Automix. One application of this output is
for the user who wishes to maintain the other mix console but bring
each microphone up on its own fader. When the switch is in the

insert position, the jack serves as a TRS insert jack allowing signal processing, such as EQ, to be inserted into
the input signal chain. The insert jack is wired as: Tip=Send, Ring=Return, Sleeve=Ground and is post low-
cut filter. When set to direct out the jack is wired as: Tip=Out, Ring=No Connection, Sleeve=Ground.

18. INSERT/DIRECT OUT SWITCH: This switch changes the function of the INS/DIR from direct out to channel

insert.

19. AUTOMIX/MANUAL SWITCH: Channels 3 and 4 can be removed from the Automix system. When set to manual,

the channel functions as a normal input channel but still has the advantage of the built-in compressor. When
the S-4s are used as the main sound system mixer, manual inputs can be used for music sources.