Phonic Mixing Console User Manual

8
HELIX BOARD 12 FIREWIRE MKII
CONTROLS AND SETTINGS
Rear Panel
16. Power Switch
This switch is used to turn the
mixer on and off. Ensure you
turn all level controls down
before activating.
17. Phantom Power Switch
When this switch is in the on
position, it activates +48V
of phantom power for all microphone inputs,
allowing condenser microphones (well, the ones
that don’t use batteries) to be used on these
channels. Activating Phantom Power will be
accompanied by an illuminated LED above the
left channel Level Meter. 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.
Channel Controls
18. Low Cut Filter (75 Hz)
This button, located on
channels 1 through to 4,
will activate a low-cut / high-
pass lter that reduces all
frequencies below 75 Hz at
18 dB per Octave, helping
to remove any unwanted ground noise or stage
rumble.
19. Mic / Line Gain Control
This controls the sensitivity of the input signal
of the Microphone / Line input. The gain should
be adjusted to a level that allows the maximum
use of the audio, while still maintaining the
quality of the feed, based on the channel setup
instructions. This can be accomplished by
adjusting it to a level that will allow the peak
indicator occasionally illuminate. All 4 mono
channels feature this control.
20. 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. 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
difcult when used in a professional audio mix, as
it is often more desirable to cut middle frequency
sounds rather than boost them, thereby soothing
overly harsh vocal and instrument sounds in the
audio.
22. 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. FireWire Pre / Post Switch
This switch is used to change the signal of
the corresponding channel that is sent to the
Computer via the FireWire interface between
that of a pre-EQ, pre-fader, pre-low cut to that of
a post-EQ, post-fader, post-low cut. In the upper-
most position, the channel will be pre, and in the
lower position post.

Phonic Mixing Console Specifications

General

Brand	Phonic
Model	Mixing Console
Category	Music Mixer
Language	English