PANASTEREO SP23 – Alignment with SMART MOD VI – DSP Matrix
30
5 – ALIGNMENT with SMART MOD VI with DSP MATRIX
Equipment required: Real Time Analyser (RTA)
1. SET UP REAL TIME ANALYSER
Set up a Real Time Analyser and position the
microphones in the auditorium.
2. PRE-SET SP23 OUTPUT LEVELS
Turn all four output trimmers on the SP23
anticlockwise until you feel a slight click.
3. SWITCH SP23 TO BYPASS
Switch the SP23 to bypass mode (Red Bypass
button IN).
4. SET THE MOD VI SURROUND
EQUALISERS TO FLAT
Open the front panel of the MOD VI processor
and set all of the surround equaliser controls
to the mid position. This should be done as
accurately as possible.
5. SELECT “OPTICAL STEREO”
FORMAT
Select “Optical Stereo” on sound processor to
output pink noise to the auditorium. Check that
the “DECODE-OFF” LED is illuminated on the
SP23
6. SET PROCESSOR VOLUME TO “CAL”
Set the sound processor volume control to the
CAL position and keep it there for all
subsequent adjustments.
7. CHECK SPL LEVELS ON ALL
CHANNELS
Using the pink noise generator in the MOD VI
check that the SPL levels for all of the
channels are correct (85dBC per channel). If
not, adjust the output level trimmers on the
MOD VI for a level of 85dBC from each
channel. Pink Noise is selected by turning the
Time Delay switch on the MOD VI matrix
board to positions A through F. This will select
Left, Right, Centre, Left Surround, Right
Surround, and Sub. Note the delay setting
before disturbing this switch.
8. TURN OFF THE REAR SURROUND
AMPLIFIER(S)
Switch off the rear amplifier or disconnect both
the left and right inputs to the rear amplifier.
9. TURN OFF SP23 BYPASS
Switch the SP23 out of bypass mode (Red
Bypass button OUT).
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