Phonic celeus 600 User Manual page 9

20. HIGH (High Frequency) Control
This control is used to give a shelving
boost or cut of ±15 dB to high
frequency (12 kHz) sounds. This will
adjust the amount of treble included
in the audio of the channel, adding
strength and crispness to sounds such
as guitars, cymbals and synthesizers.
21. MID (Middle Frequency) Control
This control is used to provide a
peaking style of boost and cut to the
level of middle frequency sounds at a
range of ±15 dB. These mixers also
provide a sweep control, allowing
you to select a center frequency
between 100 Hz and 8 kHz. Changing
middle frequencies of an audio feed
can be rather difficult when used
in a professional audio mix, as it is
usually more desirable to cut middle
frequency sounds rather than boost
them, soothing overly harsh vocal and
instrument sounds in the audio.
Stereo channels of the CELEUS 600
mixers feature a High-Mid and Low-
Mid control instead of the typical
controls described above.
provide a peaking style of boost and
cut to middle frequencies, where the
frequencies are set at 3 kHz and 800
Hz (High-Mid is set at 3 kHz and Low-
Mid is set at 800 Hz).
22. LOW (Low Frequency) Control
This control is used to give a shelving
boost or cut of ±15 dB to low frequency
(80 Hz) sounds. This will adjust the
amount of bass included in the audio
of the channel, and bring more warmth
and punch to drums and bass guitars.
23. AUX Control and Pre/Post
This control alters the signal level
that is being sent to the AUX 1 mix,
the signal of which is suitable for
connecting stage monitors, allowing
artists to listen to the music that is
being playing. Also included is a Pre/Post button, which alternates
the feed to the AUX mix between a post- and pre-fader feed. The
CELEUS 600 features a second AUX send mix, and thus offers a
second AUX control.
24. EFX Control
This control alters the signal level that is sent to the AUX 2 send
output and the built-in digital effect processor. The EFX send
signal can be used in conjunction with external signal processors
(this signal of which can be returned to mixer via the AUX return
input), or simply as an additional auxiliary output.
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25. Pan / Balance Controls
This alternates the degree or level of audio that the left and right
side of the main mix should receive. On mono channels, the PAN
control will adjust the level that the left and right should receive
(pan), where as on a stereo channel, adjusting the BAL control
will attenuate the left or right audio signals accordingly (balance).
26. On Button and Indicator
This turns the channel on, allowing the user to use the feed from
the channel's inputs to supply the MAIN L/ R, GROUP 1/2, AUX
and EFX buses. The corresponding indicator will be illuminated
when turned on.
27. 1-2 and L/R Buttons
These handy buttons allow you to decide the audio path of the
corresponding channel. Pushing the "1-2" button allows the signal
to be sent to the Group 1-2 mix, where the "L/R" allows it to be sent
to the Main L/R mix.
28. Peak Indicator
This LED indicator will illuminate when the channel hits high
peaks, 6 dB before overload occurs. It is best to adjust the channel
level control so as to allow the PEAK indicator to light up on regular
intervals only. This will ensure a greater dynamic range of audio.
This doubles as the SOLO indicator, lighting up when the channel's
SOLO is activated.
29. Solo Button
The Solo button is pushed to allow the signal of a corresponding
channel to be sent to the Control Room / Phones control (pre or
post fader, depending on the properties selected by the pre / post
button, located by the Control Room / Phones control), for use
with either headphones or studio monitors. This also allows easier
setting of the input gain and tracking of audio by sound engineers.
30. Channel Fader
This control will alter the signal level that is sent from the
corresponding channel to the main mix.
31. +4 / -10 Buttons
These buttons, located on stereo channels, are used adjust the
input sensitivity of the corresponding channel, which will adapt the
mixer to external devices which may use different operating levels.
If the input source is -10 dBu (consumer
audio standard), it is best to engage the
switch, allowing the signal to be heard. If
the input source is +4 dbV (professional
audio standard) the corresponding input
channel's button should be disengaged. If
you are unsure of the source's operating
level, leave the switch disengaged until you
test the source's signal.
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