5 gain structure, Quick start tutorial 21 – Lab.gruppen LM 44 User Manual
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Quick Start Tutorial
21
Lake LM Series Quick Start and Field Reference Guide Rev 1.2.8
31.
Tap the INPUT GAIN block on the interactive block diagram for Module A. The LEVELS screen
displaying the gain parameters for Module A will be displayed. This screen can also be accessed by
returning to HOME and tapping the Module icon.
32.
There are five gain faders displayed (1 Module Input, 4 Module Outputs). Set the values by dragging
the fader, or by tapping the blue highlighted values at the top of the screen:
▸
INPUT:
-0.00 dB
▸
LOW-1:
-3.00 dB
▸
MID-2:
-6.00 dB
▸
HIGH-3: -12.00 dB
▸
AUX-4:
0.00 dB
33.
Tap the EQ tab at the top-left of the screen, then tap the XOVER tab. This screen shows the
frequency split settings for the 3-way crossover and can be adjusted according to manufacturer
specifications or by measurement and manual tuning as required. Please refer to the Lake Controller
Operation Manual for detailed information on the XOVER screen.
34.
Tap the AUX-4 tab to show the HPF/LPF and EQ settings for the Subwoofer channel. Please refer to
the Lake Controller Operation Manual for detailed information on the AUX screen.
35.
Navigate to the LEVELS page by tapping the LEVELS tab at the top left of the screen.
36.
Unmute the Module Input by tapping the red MUTED button; the button turns blue and reads
UNMUTED.
37.
Turn on the amplifiers / powered speakers and turn up the volume as required.
38.
Start playback of audio through the mixing console and gradually increase the volume of the MAIN
and SUBWOOFER channels from the mixing console.
39.
Use the powerful XOVER, AUX, PEQ and GEQ screens to tune your loudspeaker as required. Please
refer to the Lake Controller Operation Manual for detailed information on these features.
6.5 Gain Structure
The LM Series architecture provides gain adjustments at various points in the signal path and therefore, vari-
ous places for muting and level adjustment. Each mute or gain adjustment point serves a different purpose.
Detailed information on signal flow and gain structure is available in the LM Series Operation Manual.
The signal flow diagrams show in chapter 5 are useful signal path references, and the following sections
describe the various adjustment points, all of which are available via the Lake Controller software.