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ProMix 12 Installation and Operation Manual
OPERATION
4.2 LINE INPUT CHANNELS
Line channels are assigned to the Program and/or Audition bus using the PGM but-
tons (2) and AUD buttons (3). Both buses can be used simultaneously. Line chan-
nels can be “previewed” by using the Cue bus. Pressing the CUE button (7) will
override other bus assignments, and send the audio to the Cue system (pre-fader).
The relative mix level of line sources is determined by the FADER (6). The “nor-
mal” position is -15dB, which yields 15 dB of “in hand” gain. Line channel source
equipment can be remotely started using the START button (8) directly below each
line channel fader.
4.3 MONITOR SYSTEM
The console’s main mix buses (PGM, AUD, and CUE) can be monitored via the
Monitor system. In addition, audio from an off-air monitor can be heard through
the Monitor system. A unique feature of the PROMIX 12 is the “CueMix” system,
whereby audio on the CUE bus can be heard through the Monitor system, providing
the console operator Cue bus audio that is superior then that coming from the tradi-
tional “cue speaker” found on most other consoles. Other Monitor functions
include the ability to switch the Monitor output to monaural (to check for phase
errors) and a DIM function that instantly lowers the Monitor output by 20dB.
Two buttons determine what is normally heard on the Monitor system. The
PGM/AUD button (9) selects either the Program or Audition bus. If the button is up,
the Program bus is heard; if the button is down, the Audition bus is heard, provided
that the BUS/AIR button (10) is up. If the BUS/AIR button (10) is down, the
PGM/AUD selection is overridden, and the audio source fed into the Monitor Air
input will be heard. This is normally fed with an off-air demodulator or tuner for
monitoring the station’s transmitted signal.
The Monitor system volume is adjusted using the Monitor FADER (11). The (exter-
nal) monitor amplifier should be adjusted so that the Monitor system produces ade-
quate volume with the Monitor fader set to about –15dB. The Monitor DIM button
(13) attenuates the monitor volume by 20dB.
The MONI MONO button (14) combines the Monitor output to monaural. This is
useful for checking mono compatibility of stereo signals. Note that this button
affects only the monitor audio; it has no effect on the main mix bus outputs.
4.4 CUE SYSTEM AND “QUEMIX”
One unique feature of the ProMix 12 is the CueMix system. This allows the con-
sole operator to listen to audio signals on the CUE bus through the main monitor
speakers, rather than the usual small ineffective “cue speaker” found on most broad-
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