Bose E4 manual System setup procedure, Factory default settings, Output gain setup sequence

6.0 E4 System Setup

6.3 System setup procedure

The first time you turn on an E4 system it loads its factory (default) configuration settings. These settings were stored in the E4 when it was manufactured. Once your PC is fully connected to the E4 system, you can use the Installer™ software to make changes to the factory configuration settings.

The configuration contains the “start-up” settings for the E4 hardware. Once your work is completed and flashed to the E4 hardware, the new settings become the startup configuration.

1.Select Output Gain for each zone and mute the output. This prevents any damage to speakers during this procedure. This also allows you to work without disturbing any other people in your work area. See “Output gain” on this page.

2.Set up the ZONE for each output channel. Choose a Speaker EQ (default is No EQ) for the speakers you are using. You can use the Subzones table to document your subzones. See “Zone setup” on page 46.

3.Set up the Input Gain controls for each source. Choose set- tings for input type, gain, and source leveling. If the input type is set for microphone use, you can turn phantom power (+12V) on or off. See “Input gain” on page 47.

4.Set up the Output Gain controls for each zone. Set the min- imum/maximum gain (volume) limits and the initial gain level. See “Output gain” on this page.

5.Select Source Assign for each zone and assign sources for each. See “Source assign” on page 49.

6.Set up the source EQ for MIC/LINE 3 and MIC/PAGE/LINE 4 inputs. See “Source EQ” on page 50.

7.Select Page Set Up. See “Page setup” on page 50.

8.Select EQ for each zone. See “Zone EQ” on page 52.

9.Select the Dynamic EQ state for each zone. See “Dynamic EQ” on page 53.

10.Set up Auto Volume. See “Auto Volume” on page 53.

11.Create a System Schedule. See the “Set Up Schedule mode” on page 40.

12.Click the flash configuration button in the upper toolbox. You will be asked to confirm that you want to save the configura- tion to the E4 hardware. Once you confirm, the configuration and scheduling settings are sent to the E4 hardware.

A copy of the Installer™ software design file is also sent to the hardware.

6.3.1 Output gain

The controls in the Output Gain control panel allow you to control the amplifier output of the E4 system.

Page gain	Gain Slider	Max. gain	Clipping
setting	(Volume)	stop	indicator

Page gain	Mute	Min. gain	Signal level
button	selection	stop	meter

Factory default settings

Gain	Max. Gain	Min. Gain	Page Gain	Mute
–20 dB	0 dB	–60 dB	–20 dB	Off
Output gain circuit block diagram
	Gain	Signal
	adjustment
		level

meter Clipping detector

Output gain setup sequence

1.Set the maximum output gain.

This sets the maximum allowed volume within a zone. Play a source that will be used in that zone and raise the volume slider to the zero level. If it is too loud, lower the maximum gain stop.

Programmer’s Note: If the source still plays too loud at the –30 dB setting, you should lower the tap setting on your speakers for optimal system performance.

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