4
CELEUS 200
English
Rear Panel
8. USB Connector
This USB-B connection is for the USB computer interface.
Use the included USB cable to connect this to your
computer's USB port.
9. DC Power Input
This standard DC power input port is for connection of the
included power supply. Please use the included power
supply only as using the incorrect voltage can cause
irreversible damage to the mixer.
10. Headphones Jack
This stereo output port, found on the
very front of the mixer, is suited for use
with headphones, allowing monitoring
of the mix. The audio level of this output
is controlled using the Phones/Control
Room control on the front panel.
CONTROLS AND SETTINGS
11. Phantom Power Switch
When this switch is in the on position, it activates +48V
of phantom power for XLR microphone inputs, allowing
condenser microphones to be used on these channels.
Activating Phantom Power will be accompanied by an
illuminated LED above the mic input. Before turning Phantom
Power on, turn all level controls to a minimum to avoid the
possibility of a ghastly popping sound from the speakers.
NB.
Phantom Power should be used in conjunction with balanced
microphones. When Phantom Power is engaged, single ended
(unbalanced) microphones and instruments should not be used
on the Mic inputs. Phantom Power will not cause damage to most
dynamic microphones, however if unsure, the microphone’s user
manual should be consulted.
12. Power Switch
This switch is used to turn the mixer on and off. Ensure you
turn all level controls down before activating. This ensures
no audio is inadvertently sent through your system.
Channel Controls
13. PAD Button
The PAD button is used to
attenuate the input signal by 25
dB. This should only be pushed
in when using line-level input
devices.
14. Gain Control
This controls the sensitivity of the input signal of the Line/
Microphone input of the first and second input channels.
The gain should be adjusted to a level that allows the
maximum use of the audio, while still maintaining the
quality of the feed. This can be accomplished by adjusting
it to a level that will allow the peak indicator occasionally
illuminate.
15. Compressor Control and Indicator
This controls the onboard compressor function on channel
1. Turning this control up towards the 12 o’clock position will
adjust the threshold and ratio of the compressor at varying
degrees. Once you reach the 12 o’clock position, the
control will then adjust the compression settings along with
an onboard expander (or, in other words, a 'compander').
The LED that accompanies this control will light up when
the compressor is triggered.
16. TREBLE (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.
17. MID (Middle Frequency) Control
This control is used to provide a peaking style of boost and
cut to the level of middle frequency (2.5 KHz) sounds at a
range of ±15 dB. 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.
18. BASS (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.
19. EFX Control
This control alters the signal level that is sent to the EFX
output, which can be used in conjunction with external
signal processors (this signal of which can be returned to
mixer via the stereo return inputs), or simply as additional
auxiliary outputs for any means required. This control also
adjusts the level of audio that is sent to the built-in digital
effect panel.
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