Video Description
LA108 / LA112 Back Panel Navigation
5m 27s
In this video, we dive into the Rear User Interface (RUI) menu featured on the LA108 and LA112 active loudspeakers. You'll learn to navigate the simple interface using the onboard controls and get familiar with the entire menu system.
Lesson Transcript
LA108 / LA112 Back Panel Navigation
5m 27s
0:08
Hello! In this video we’re going to show you
0:11
how to navigate the rear control panel of an LA108 and LA112 loudspeakers.
0:17
The entire L Class rear user interface consist of a 2.4-inch full color display
0:22
which is navigated using an encoder wheel and menu button.
0:25
You also have an ID button here
0:27
which is used to identify the loudspeaker over a network when using QSC System Navigator™ software app.
0:32
This simple, yet effective control system allows for quick and precise configuration of a single loudspeaker,
0:38
or an entire array from just one interface.
0:41
Let’s jump in and have a look.
0:43
Once powered on, the main display on the LED screen will show the status of the
0:47
loudspeaker or array with this bar at the top of the screen.
0:50
In the upper section, the total number of boxes in the array will be displayed
0:54
with the current box highlighted in the diagram.
0:57
You will also see the splay angle of each loudspeaker,
0:59
as well as the high frequency shading of each loudspeaker displayed on either side of the diagram.
1:05
Next to the array section is the gain for the current loudspeaker, which can be adjusted using the encoder wheel.
1:11
The icons at the bottom represent the Network, Array Compensation, High-Pass filter and EQ status.
1:17
If any of these parameters are active, these corresponding icons will illuminate.
1:21
Let’s go ahead and dive into the menu.
1:23
We’ll access this by pressing the “Menu” button indicated by these three lines.
1:27
Now we can see all of our menu options.
1:30
To access any of these parameter simply use the wheel to scroll over the desired parameter
1:34
and then push the wheel in to select it.
1:37
You can make adjustments to any of the settings on the current screen by scroll and selecting with the encoder wheel.
1:44
In the High Pass Filter (HPF) section, we can see options for "No subwoofer", 80 Hz, 100 Hz crossover filters.
1:50
To exit and return to the menu, simply press the “Menu” button.
1:54
Each loudspeaker features an architectural time delay of up to 200 ms,
1:59
which can be dialed up here.
2:04
Next, we can engage or bypass the EQ settings in the DSP.
2:09
When multiple L Class loudspeakers are arrayed together,
2:12
the HF Shading section will display the High Frequency shading for each box within the array.
2:18
From this screen you can also manually adjust the amount of HF shading applied to any loudspeaker in the array
2:24
not just the one you are currently controlling.
2:29
The Array Compensation screen will allow you to manually input the total number of loudspeakers in the array
2:34
as well as to designate each loudspeaker’s location in the array.
2:38
Here is where you input the total Splay angle of the array, which is the sum of all array angles added together.
2:44
You can also lock the optimization so that any movement of the array
2:47
due to environmental factors won’t change the array status on the UI or SysNav.
2:53
Both the Array Compensation and the HF shading sections can be setup automatically
2:57
using the one-touch Array Optimization function that we’ll cover later.
3:02
Next in the menu is the state of the array.
3:05
The last option in the Menu is the settings section.
3:12
If we select and access the settings we are taken to the settings menu, where we have access to the security feature,
3:20
the loudspeaker input sensitivity, LED mode and LCD brightness, Network settings and Utilities.
3:28
To setup security, use the encoder wheel to set a 4 digit passcode
3:35
by scrolling through each number box and pressing the wheel to set it.
3:35
Once all four numbers are set the green unlocked button will become the lock button.
3:40
Scroll to select it and press the wheel to lock the loudspeaker or array.
3:44
The screen will back itself out to the main screen and you will see a “Locked” bar across it.
3:49
When the loudspeaker is locked, the password screen will appear any time any of the controls are accessed.
3:54
The correct password must be entered to make any adjustments to the settings.
3:59
If using the security feature, it is highly recommended that you write down or record the password somewhere.
4:04
You don’t want to inadvertently get locked out of your loudspeaker settings
4:07
due to forgetting your password!
4:10
In the input sensitivity parameter section we are presented with two options:
4:15
plus 24 dBu and plus 4 dBu
4:17
The L Class will default to +24 dBu, which is designed for high-output professional mixing consoles.
4:23
If you are connecting an audio interface, or a low output mixing console,
4:26
you may want to set this to the +4 dBu
4:28
if you discover that the output of your system is too low and you need to apply a lot of gain to get to a nominal level.
4:35
LED mode allows you to adjust the functionality of the front and rear LED indicators,
4:39
including full black out for dark stages.
4:42
LCD brightness should be pretty self-explanatory.
4:45
Here you can turn up or down the brightness of the LCD display.
4:48
The network screen will display the current network settings and status
4:52
with the option to set these parameters manually,
4:54
if connected to a network and using QSC System Navigator software app.
4:59
Next, we have the Utilities section, where we can perform a diagnostic test,
5:03
reset the loudspeaker to factory settings or recalibrate the accelerometer of the current loudspeaker.
5:08
And that's it!
5:09
That's the full walk through and navigation of the LA108 and LA112 loudspeaker menu system
5:15
Thank you for watching. Move on to the next video whenever you’re ready. See you there!