29. LED Meters
Six 12-segment LED arrays monitor the levels of the sub mixes
and the main L-R outputs. The 0 dB reference level corresponds
to +4 dBu. The L-R meter array is also used for PFL metering.
(See #18, 28 and 33)
30. Sub Pan
Sets the position of the sub mix in the L-R stereo field.
31. Sub PFL LED
Illuminates when the Sub PFL switch (#33) is depressed to indi-
cate that this signal has been assigned to the PFL mix.
32. Sub Mute
Mutes the sub mix signal to the sub output and to the L-R mix. It
does not affect the PFL signal, which can be used to check the
levels when the sub mix is muted.
33. Sub PFL
Connects the sub signal (pre-master level) to the PFL mix and
switches the headphone/control room source from the L-R mix
to the PFL mix. It also connects the PFL mix signal to the L-R
meters. (See #32.)
34. Sub L-R assign
Assigns the sub mix to the L-R mix with its stereo position deter-
mined by the Sub Pan control (#30).
35. Sub Fader
Sub mix output level control. Sets the level sent to the output
jack and the L-R assign switch (#34). The optimum setting for
this control is the “0” (unity gain) position.
36. Master Left and Right Faders
These are the main faders that set the level of the left and right
mix (both balanced and unbalanced). The output levels are
monitored by the left and right meters. The optimum setting for
these controls is the “0” (unity gain) position.
29
30
31
32
33
34
35
36
36
37. Stereo Returns 1 & 2
These are basic stereo input channels with level, pan, mute,
PFL, and assignment switches. An LED that indicates both
clipping and PFL is the same as that on the input channels.
These inputs are line level and can be used for effect returns,
tape inputs, or for slave mixer inputs.
38. Stereo Returns 3 & 4
Similar to the Stereo Returns 1 & 2, these two returns have
treble and bass controls in addition to mono sends to the AUX 1
and AUX 2 mixes. These returns can be used as additional
stereo input channels. (See #37.)
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38
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