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Mode adjust, A 5-b 5-c – JBL SYNTHESIS SDP-40 User Manual

Page 111

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MODE ADJUST

SDP-40

5-13

To calibrate the PANORAMA listening mode:

1. Remove all obstructions between the primary listening position

and the speakers.

2. Make sure the distances between the primary listening position

and the speakers are properly measured. To do this, select one
of the following options:

Select the AUTO SPEAKER SETUP menu DISTANCES option
to have the SDP-40 automatically calibrate speaker
distances.

Measure the distance between the primary listening
position and the front baffle of each speaker. Then, set the
corresponding SPEAKER DISTANCES menu parameters to
the closest available value.

3. Sit in the primary listening position. If the primary listening

position is not centered between the front left and right
speakers as shown in illustration 5-B (above), set the LISTENER

POS parameter to compensate for the difference. Each increment
within the –127 to +127 parameter range represents about
one-third of an inch. Refer to the illustrations above for more
information.

4. Set the SOURCE parameter to RIGHT.

5. Begin playback of the external calibration source.

6. When playback of the external calibration source is in progress,

set the SPEAKER ANGLE parameter so the sound is not heard in
the right ear.

7. To confirm the LISTENER POS and SPEAKER ANGLE parameter

settings, set the SOURCE parameter to LEFT & RIGHT. If the
PANORAMA listening mode has been properly calibrated, the
sound should be perceived to come from all around the
primary listening position. If this does not occur, begin again
with step 1.

Front Left

Front Right

L127 . . . . . . Center . . . . . . R127

60

°

Front Left

Front Right

Primary Listening Position

Front Left

Front Right

L127 . . . . . . Center . . . . . . R127

5-A

5-B

5-C