11
HELIX BOARD 12 FIREWIRE MKII
40. Assign to Main Button
When the “Assign to Main” button is engaged, the
FireWire/2T Return and Alternative 3-4 signals
can be selected by using the corresponding
buttons, and are, intern, sent to the Main L-R
and Control Room mixing buses via the Control
Room / Submix control. This can come in handy
when you want play a CD during intermission
in a live show, as this allows users to send the
signals from the FireWire interface, 2T RTN
and/or ALT 3-4 to the main left and right outputs.
If you have the Main L-R or AUX 1 buttons on
the Control Room Source section engaged, the
corresponding signals will not be sent to the
control room and headphones output by the use
of this button.
41. Control Room / Submix Control
This control is used to adjust the audio level of
the Control Room feed, which is sent to both the
Control Room outputs (for monitoring, acting as
side ll or other purposes) and Phones outputs
(to be used in conjunction with headphones
for monitoring purposes). It also acts as the
“Submix” control, which allows the user to adjust
the level of the signals selected by the Control
Room Source when the Assign to Main button
is engaged.
42. Main Level Fader
This 60mm fader is nal level control for the main
left and right audio feed, sent to the Main L and
R output.
43. Level Meter
The stereo 8-segment level meter gives an
accurate indication of when audio levels of the
selected Control Room source(s) reach certain
levels. It is suggested for the maximum use of
audio to set the various levels controls so that
the Peak LEDs ash only occasionally (and
perhaps it is better if you ensure the level stays
around a pinch below that).
44. +48 Indicator
The +48 Indicator illuminates whenever the
Phantom Power switch is activated.
45. Power Indicator
The Power Indicator will light up when the power
of the mixer is on.