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8 VA-8xl - Operating the VA-8xl
5 Operating the VA-8xl
When switching on the VA-8xl (after a previous session), the VA-8xl briefly scans
each channel (stored in the non-volatile memory), showing the settings in the LED
displays. After that, the VA-8xl goes to channel 1, and shows its gain/attenuation
level in dB.
During regular work, the VA-8xl shows the status of the last channel you observed
and/or changed.
To observe the status of a channel:
• Press a CHANNEL SELECTOR button.
That CHANNEL SELECTOR button illuminates for about 20
seconds and the decibel values of the selected channel appear in
the dimmed LED displays
When the LEDs are dimmed, you cannot change the gain or attenuation - the values
are for observation only
You can control the amplifier gain of the left and right channels via the front panel
buttons, or remotely via RS-232 or RS-485. You can increase or decrease the gain
in increments of 0.5dB from -95dB up to +31dB.
You can control the amplifier gain of the left and/or right channels separately or
together (see Section
5.1).
5.1 Adjusting the Gain/Attenuation of the Channels
To adjust the amplifier gain or the attenuation:
1. Press the appropriate CHANNEL SELECTOR button.
That CHANNEL SELECTOR button illuminates and the decibel values of the
selected channel appear in the dimmed LED displays (stored in the
non-volatile memory).
(When the LEDs are dimmed, you cannot change the gain or attenuation - the values
are for observation only).
2. Press the LEFT LEVEL and/or the RIGHT LEVEL button.
The decibel values of the selected channel appear in the bright LEFT and/or
RIGHT LED display.