ATL twotwo sub1, Руководство пользователя

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Operational Controls
The
twotwo
active subwoofers are configured and controlled via a simple menu system which is viewed on
the rear panel display and navigated by four associated push-buttons. The first loudspeaker in a
twotwo
series chain acts as the master volume controller.
Looking at the four cursor buttons, the left and right buttons step back (exit) and select (enter) the menu
options, respectively, while the upper and lower buttons scroll through the various menu options and adjust
the parameter values. The menu structure is simple, logical and intuitive, and uses clear display legends to
indicate the selected function and parameter.
When the twotwo active subwoofer is connected to a mains supply it will power-up with the default display.
Pressing any of the four rear panel buttons will turn the system on. The factory default settings will initially
configure the subwoofer to use the analogue XLR inputs, with the input sensitivity set to +12.5dB, Trim 0dB,
all the equalisation set flat, backlight timeout 2 minutes, and the volume set to -20.5dB.
Factory Reset
The factory default settings can quickly be restored by pressing and holding the Up and Down buttons
simultaneously for more than 2 seconds.
Default Display
With the loudspeaker switched on, the LCD window normally indicates the current volume level and the
selected low-pass filter frequency and slope. The system volume is indicated in decibels on the upper line of
the display, within the range -48.5 to +15dB. To increase or decrease the current volume level press the up/
down buttons. The LF roll-off settings are displayed on the second line, with the roll off frequency followed
by the slope.
V o l u m e – 2 0 . 5 d B
L F R o l l O f f
Power Mode
By pressing the right (enter) button, the next menu level is accessed which accesses the power standby
mode. By pressing the right button again, power standby is selected and the LCD will show ‘Zzz’ to indicate
the standby (Sleep) condition. The backlight will switch off.
Z z z
NOTE: The loudspeaker can be activated again by pressing any rear panel button.