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Configuring the 861
Reference Digital
Surround Controller
Calibrating the system
To help you to set up your installation to give the
best possible sound with any particular combination
of associated equipment, the 861 Reference Digital
Surround Controller includes a built-in calibration
procedure.
This calibration procedure uses test signals to present
a series of sounds, which you use to adjust certain
aspects of the system to their optimum settings.
You should work through the calibration procedure the
first time you set up your surround sound system, and
whenever you want to check the calibration, such as
after changing the layout of your room.
Using the calibration procedure
We recommend that you perform the calibration
procedure using the MSR+ from the listening position.
As you run the calibration procedure the name of each
calibration test is shown on the front-panel display,
followed by the parameters adjusted in the test.
Each calibration test uses a test signal designed to give
the best results.
Using a Sound Pressure Level meter
Although you can perform the calibration procedure by
ear, it is recommended that you perform the tests using
a Sound Pressure Level meter.
Set the Sound Pressure Level meter to C weighted,
80dB range, and slow response. Take readings with
the meter at the listening position, pointing vertically.
You should hold the meter with an outstretched arm to
minimise reflections from your body.
To start the calibration procedure
Put the digital surround controller into standby by
pressing Off (front panel or remote).
Press and hold the Calibrate key, under the front
panel, for at least five seconds.
The display shows:
Calibration
After a few seconds the display shows:
Left Level +0.0dB
For more detailed information about this and the other
calibration tests see the following sections.
To move between the calibration tests
Press > (remote), or the corresponding menu key
under the front panel.
Press < (remote), or the corresponding menu key
under the front panel, to move back to an earlier test.
To jump to the next set of tests
Press Store (front panel or remote).
The calibration tests are described in the following
sections.
To exit from the calibration procedure
You can exit from the calibration procedure at any time,
and any parameters you have set will be retained.
Press Off (front panel or remote).
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