Focal FOCAL DUAL MANAGER, Manual

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3.3. Save menu
When clicking on Save a pull down menu is displayed, enabling the following operations:
• Preset 1 to 5
When selecting one of the 5 Presets the current set of parameters, as displayed on the computer screen, will be
saved in one of the five dedicated memory areas in the amplifier.
Later on when the amplifier works in stand alone mode the Preset can be selected by pressing the corresponding
button number on the remote controller.
• Temporary Preset
This performs the same operation as above, except that once saved the Temporary Preset will not be accessible
from the remote controller when the amplifier works in stand alone mode.
• Save To File
This allows to store a complete Preset as a file on the hard disk for future use. Simply select the appropriate
location on the hard disk and enter a convenient file name.
3.4. Preferences menu
This menu gives the user control over two different facilities: User Mode management and Headroom.
Accordingly the pull-down menu that will appear when selecting Preferences contains the following options.
• Restricted user mode
In Restricted user mode, for the sake of simplified use some of the most advanced functionalities are not
accessible. In the next paragraphs it will be specified whenever Administrator mode is required.
• Administrator mode
This mode gives access to all the available parameters, allowing their modification without any restriction.
Entering a valid (case sensitive) password is required before administrator rights can be granted. The default,
factory set, password is simply Focal.
• Change Administrator’s password
Clicking on this option will open a dialog box, prompting you first to type the current password, then the new
password you want to authorise access to Administrator rights.
• Headroom
This parameter lets you set the digital attenuation you want to implement at the input of the processing section,
between 0 and 30dB in 6dB steps. The default value is 0 dB, which provides maximum signal-to-noise ratio.
However insufficient headroom may result in digital overflow if significant boosts are performed In the equili-
zing sections. As a rule of thumb, the optimum value should roughly match the maximum amplitude boost that
you can see in your frequency response.
Having too much headroom however will tend to waste the resolution of the A/D converter and result in
degraded signal-to-noise ratio.
3. Title bar and menus
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