49. +48V Indicator
This indicator will illu-
minate when Phantom
Power is activated.
50. Power Indicator
The Power Indicator
will light up when the
power of the mixer is
on; in case you weren’t
too sure.
51. Level Meter
This dual 13 segment level meter gives an accurate
indication of when audio levels of the Main L/R output
reach certain levels. The 0 dB indicator illuminates
is approximately equal to an output level of +4 dBu
(balanced), and the PEAK indicator illuminates about 1.5
dB before the signal is dynamically clipped. It is suggested
for the maximum use of audio to set the various levels
controls so that it sits steadily around 0 dB to make full use
of audio, while still maintaining fantastic clarity.
52. Group 1/2 Controls
These two faders are the fi nal level
control for the Group 1 and 2 audio
feeds, sent to the Group 1 and 2
outputs. These faders can be fed a
signal from the various mono and
stereo channels, as well as EFX
Returns, depending on the your
selections. When pushed all the
way up, these faders provide 10
dB of gain to the signal, and, when
set all the way down, effectively
mute the signal.
The Group Controls also feature
Left, Right and Solo buttons, which allow you to send the
Group 1/2 signal to the Main Left and Right, and the Control
Room / Phones mixing buses, respectively.
53. Main L/R Faders
These two faders are the fi nal level control
for the Main Left and Right audio feeds,
sent to the Main L and R outputs. These
faders are possibly fed by the various mono
and stereo channels, as well as AUX and
EFX returns and 2T inputs, depending on
the your selections. When pushed all the
way up, these faders provide 10 dB of gain
to the signal, and, when set all the way
down, effectively mute the signal.
43. Return Solo Button
Pushing this buttons allows you to send the signal from
the 3 AUX Returns to the Control Room / Phones mixing
bus.
44. AUX Send Master Control
This rotary control adjusts the fi nal level of the AUX mixing
bus (as taken from the AUX level controls on each channel
strip), the audio of which is sent to AUX Send 1 output. The
corresponding SOLO button allows you to send the AUX
Send signal to the Control Room / Phones mixing bus.
45. EFX Send Master Control
This control adjusts the fi nal level of the EFX mixing bus (as
taken from the EFX level controls on each channel strip),
the audio of which is sent to the AUX Send 2 outputs, as
well as the built-in digital effect engine. The corresponding
SOLO button allows you to send the signal to the Control
Room / Phones mixing bus.
46. Control Room / Phones Controls
This control is used to adjust the audio level of the Phones
feed, as well as the signal sent to the Control Room output,
for use in monitoring and tracking of audio.
47. Pre / Post Control and Solo Indicator
This button alternates the Control Room / Phones source
signals between those of post-fader and pre-fader feeds.
When the Solo indicator, located beside the Level Meter,
is illuminated, one or more Solo buttons has been pushed,
therefore the Level meter will display properties of the
Solo, which is helpful with setting of channel levels. If Solo
indicator illuminates green, this means the Solo feed is a
pre-fader signal. If the solo indicator illuminates red, the
feed is post-fader. If the no Solo buttons are activated,
the 2T Return signal properties are displayed by the Level
Meter, unless the "To Ctrl Rm" button is not pressed - in
which case the Main L-R signal properties will be displayed.
If this isn't clear enough, just check the table below.
Priority
Signal
Highest
From Solo
Medium
2T Return to Control Room
Lowest
Main L/R
48. 2T Return Controls
Turning the 2T Return level control adjusts the signal
level of the feed from the 2T Return inputs, as well as
the return feed from the PC (when connected through the
provided USB cable). Pushing either one of the buttons
in the 2T Return Control Section selects the destination of
the 2T Return signal. The uppermost button (“to Ctrl Rm”)
sends the signal to the Control Room/Phones mixing bus,
whereas the lower button (“to L/R”) sends the signal to the
Main L-R mixing bus. These buttons can, of course, be
used simultaneously, feeding the signal to both the Control
Room/Phones and Main L/R mixing bus.
10
HELIX BOARD 17
