8
MU 1722X / MU 1822X
42. EFX Send Master Control
This control adjusts the final 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 (on the MU1722X) and the AUX
Send 3 (on the MU1822X) outputs, as well as the built-in digital
effect processor. The corresponding SOLO button allows you to
send the signal to the Control Room / Phones mixing bus.
43. 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, as side fill, or for the addition of other, external
devices.
44. Pre / Post Control
This button alternates the Control Room / Phones source signals
between those of post-fader and pre-fader feeds.
45. 2T Return Controls
Turning the 2T Return level control
adjusts the signal level of the feed from
the 2T Return inputs. 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.
46. +48V Indicator
This indicator will illuminate when
Phantom Power is activated.
47. Power Indicator
The Power Indicator will light up when
the power of the mixer is on; in case you
weren’t too sure.
48. Level Meter
These dual 11- or 12-segment level meter (on the MU1722X
or MU1822X, respectively) give 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, and the PEAK indicator illuminates about 6 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 between 0 and 8 dB to make full use of audio, while
still maintaining fantastic clarity.
When no signal is being fed through the Main L/R mixing bus, the
level meter will then display the audio properties of the Control
Room / Phones feed. This is especially helpful when setting the
levels of each individual channel, as is shown in the Channel Setup
section of this manual. The “Solo” button will illuminate when the
Level Meter displays the audio properties of the Control Room /
Phones signal.
Master Section
37. AUX Return Controls
These controls adjust the signal level
of audio fed through to the stereo AUX
Return inputs (1 and 2), which will be
added to the MAIN L-R or GROUP 1-2
mixes, as selected by the corresponding
button. The two “To AUX” controls adjust
the post-fader level of the signal from
the AUX Return controls to the AUX
mixing buses.
On the MU1822X, the AUX return controls also feature a SOLO
button, which sends the signal to the Control Room / Phones
mixing bus, most commonly for monitoring.
38. EFX Return Control
This control adjusts the signal level of audio fed through to stereo
AUX Return 3 inputs. If no device is plugged into the AUX Return
3 inputs, this control then acts as the final level control of the
built-in Digital Effect Engine. The signal of this control is sent to
the appropriate mixing bus, as selected by the Main L-R / Group
1-2 button.
On the MU1822X, the EFX return control is a little different, as
it is, in fact, a 60mm fader, and takes its feed from AUX Return
2 (instead of AUX Return 3, as is the case with the MU1722X).
Along with what was already stated, the MU1822X’ EFX Return
Control also features a SOLO button (with indicator) – which sends
the signal to the Control Room / Phones mixing bus – L-R button
– which allows you to send the EFX Return post-fader signal to
the Main Left and Right mixing bus – and, 1-2 button – allowing
you to send the EFX Return post-fader signal to the Group 1 and
2 mixing bus.
39. Main L/R - Group 1/2 Button
This button changes the destination of the signal sent from the
AUX Return 1 through to AUX Return 3 mixing buses between
the Main L/R and Group 1/2 mixing buses.
40. Return Solo Button
Pushing this buttons allows you to send the signal from the 2
AUX Returns (and the EFX Return) to the Control Room / Phones
mixing bus. This button, however, is not featured on the MU1822X,
as each of the AUX Return controls on this mixer has it’s own,
individual SOLO button.
41. AUX Send Master Control
This control adjusts the final 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
40
41
42
43
44
MU1822X
40
39
MU1722X
37
MU1722X
38
46
47
48
