2 1
MC7.1
- Surround Monitor Controller
The Procedure:
The following procedure is specifically designed for stereo calibration, however, a
surround setup is much the same but may involve different SPL levels per speaker
depending on the type of surround that is required, i.e. 7.1, 6.1, 5.1 etc. In which
case refer to the specific surround procedure, (i.e. Dolby Digital, DTS, THX etc.) for
further instructions.
1.
Begin by turning off the monitoring system and ensuring that all inputs and
speakers are correctly connected.
2.
Set all DAW/System controls to 0dB/unity gain - this should be left at this setting
from now on. Remove all e.q. and dynamics from the signal path.
3.
If you have active speakers with their own level control, or speakers with an
amplifier, set all of these to maximum, so that they do not attenuate the signal.
4.
On the underside of the MC7.1 you will find the speaker calibration trims - using
a screwdriver initially set all of them to their full attenuation position by rotating
each fully counter-clockwise.
5.
W ith the Master Volume switch set to ‘Knob’
(6)
set the large volume on the front
of the MC7.1 to
12 o’clock and leave it there throughout the calibration procedure -
this will be the position that provides the 85dB listening level from now on.
6.
Turn the system on and play the 500 Hz – 2.5 kHz bandwidth-limited pink noise
at -20 dBFS. Select the
required Source on the
front of the MC7.1 -7.1,
C or D. You should not
hear it, yet.
7.
Activate Speaker 2 by
having only the Speaker
2 switch active in the
speakers section on
the front panel.
8.
In order to hear only
the Left speaker
remove the right
speaker by activating
the Right Cut switch.
9.
On the underside of
the MC7.1 rotate the
Left Speaker 2 trim
clockwise. You will now start to hear the signal, but only for that speaker. Rotate
until the SPL meter reads 85dB.
10.
In order to hear only the Right speaker switch in Left Cut and deactivate the
Right Cut.
11.
On the underside of the MC7.1 rotate the Right Speaker 2 trim clockwise until
the SPL meter reads the desired level.
