Digital Effect Engine
40. Digital Effect Display
T h i s 2 - d i g i t a l n u m e r i c
display shows the program
number that is currently
applied to your EFX audio
signal. When you rotate
t h e P r o g r a m c o n t r o l ,
you can scroll through
different program numbers;
however the display will revert back to the original program if a
new program is not selected within a few seconds. For a list of
available effects, please observe the Digital Effect Table.
41. Sig and Clip Indicators
Located within the Digital Effect Display are Clip and Sig LEDs.
The Sig LED will light up when any signal is received by the
effect processor, and the Clip LED will light up shortly before
excessive signals are dynamically clipped. If the Clip LED lights
up too often, it may be advisable to turn down the AUX 3/EFX
master control to ensure the signal level is not excessive.
42. Program Control
This control is used to scroll through the various effects. Turning
the control clockwise will allow users to ascend into higher
program numbers, and turning it counter-clockwise will allow
users to descend into lower program numbers. When turning
to a new program, a small LED will flash until you push the
program knob down – this will apply the effect. When a tap-
delay effect is selected, pressing this control will allow users to
select the tap-delay time.
By pushing the button several times, the effect processor
interprets the time between last two pushes and remembers this
as the delay time – until the button is pushed again. This is kept
even after the power is turned off. When the tap delay effect is
selected, a small LED (located between the two digit display)
will flash within the digital effect display window at the selected
intervals.
43. Effect Bypass
Use it to bypass the effects and monitor your audio before and
after the effect is applied. When the effect engine is bypassed,
the 2 small indicators on the digital effect display will flash.
Master Section
44. AUX Return 1 to 4 Controls and Solo Buttons
These controls adjust the signal level of audio fed through to the
stereo AUX Return inputs. The "To AUX Send 1" and "To AUX Send
2" controls adjust the pre-fader level of the signal from the AUX
Return controls to the corresponding AUX mixing buses for effect-
to-monitor sends. The AUX 3 control typically adjusts the signal
level of audio fed through to stereo AUX Return 3 inputs, however,
if no device is plugged into the AUX Return 3 inputs, it then acts as
the output level control of the built-in Digital Effect Engine.
45. Main L/R - Group Buttons
The first of these buttons changes the destination of the signal
sent from the AUX Return 3 mixing buses between the Main L/R
and Group mixing buses. The second button works when the user
selects to send the signal "To Group", allowing the signal to be sent
to either Group 1-2 or Group 3-4.
46. C-R / PHNS Only Button
The "Control Room / Phones Only" button that is located below
AUX Return Control 4 allows users to send the AUX Return 4
post-fader signal to the Control Room / Phones mixing bus for
monitoring purposes.
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47. Solo Return Button and Indicator
Pushing this buttons allows you to send the signal from all AUX
Returns to solo mixing bus (which is, intern, sent to the Control
Room / Phones mixing bus). When the Solo is activated, the
corresponding LED indicator will illuminate.
48. AUX Send 1 to 4 Master Controls and Indicator
These controls adjust the final level of the AUX 1, 2, 3 and 4 signals
(as taken from the AUX level controls 1 to 4 on each channel strip),
the audio of which is sent to the corresponding AUX sends. The
AUX 3 control not only adjusts the output level of the AUX 3/EFX
mix that is sent to the corresponding output, but also the signal
sent to the built-in Effect Processor as well. The Solo buttons allow
you to direct the AUX Send signals to the Control Room / Phones
mixing bus for monitoring purposes. When any of the AUX solo
buttons is activated, the AUX Solo LED will illuminate.
49. Control Room / Phones Control
This control is used to adjust the audio level of the Control
Room and Phones feeds, for use in the monitoring and tracking
of audio. The signal is then sent to the Control Room outputs
on the rear of the Helix Board 24 Universal mixer, as well as the
Phones jack on the face of the mixer.
50. Pre / Post Button and Solo Indicator
This button alternates the solo source signals between those
of post-fader and pre-fader feeds, to be sent to the Solo and
Control Room / Phones mixing bus. When the Solo indicator,
located beside the main level meter, is illuminated, it means
one or more Solo buttons has been pushed; therefore the Main
Level meter will display properties of the Solo signal, which
is helpful in the setting of channel properties. 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.
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51. Control Room Source Buttons
These five buttons, located below the Phones / Control Room
control, allow users to select the various possible sources for
the Control Room and Phones outputs. By simply pushing one
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Helix Board 24 Universal