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6 Display Intensity Button
Cycles among four levels of brightness (including “off”) for the
display, allowing adjustment for various ambient lighting condi-
tions. When “off,” the display will turn on for a few seconds when-
ever a setting is changed. When used in conjunction with certain
compatible Mark Levinson components, this button will control
the display intensity of all linked components. (For more infor-
mation, see “Linked Functions.”)
7 Setup Button
Pressing the setup button places the Nº383 into setup mode, and
lights the LED indicator immediately above the
setup button.
While in setup mode, the display is used to show a series of menu
choices that allow you to customize the Nº383 rather extensively,
to better suit your system’s needs and personal preferences. The
selector knob and the volume knob are used to select menu
items and make adjustments, respectively. For more information
on this customization, please see “Customizing Your Nº383.”
8 Enter Button
Used in conjunction with the setup button, the enter button
allows you to save changes made to the Nº383 while in setup
mode. For more information on this customization, please see
“Customizing Your Nº383.”
9 Balance Button
Pressing the balance button allows you to adjust the relative vol-
umes of the left and right channels using the volume knob. While
in balance mode, the display changes to show you the current relative
balance of the left and right channels, displaying the magnitude of the
offset in decibels. If you leave the balance mode with the balance “off-
center,” the LED remains lit to remind you that the balance is not
“even.”
10 Mute Button
Pressing the mute button will reduce the main output level of the
preamplifier by a user-modifiable amount, ranging from -10 to
-73.2 decibels. Pressing the mute button a second time without
adjusting the volume will return it to its previous setting.