Drawmer MC 3.1, Manual

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MC3.1
- Monitor Controller
12. To calibrate each speaker repeat steps 7 to 11 - replacing the speaker on step
7 for each set - A,B or C.
13. To calibrate the sub - play the 40-80Hz signal, but this time have only the SUB
switch active - Left and Right Cut need not be active as the frequency of the signal
is limited to only the sub.
14. On the underside of the MC3.1 increase the Mono trim increasing the volume of
the sub until the desired SPL meter reading is reached.
15. Repeat steps 7 to 12 whilst playing the full bandwidth pink noise and adjusting
to suit. The readings should be pretty close and only require fine adjustment.
16. Now the system is calibrated it
is time to set the
PRESET volume
control. Set the Master Volume switch
to ‘PRESET’ ( ) and with only one
set of speakers active in the Speaker
Select switches ( ) adjust the preset
level on the front of the MC3.1 using
a screwdriver until the SPL meter
reads your desired listening level.
16. You are finished and the calibration process has been completed.
The volume control will have a few dB’s of headroom so care must be taken to both
your hearing and system when increasing the volume passed the 12 o’clock
position. As with all things that are calibrated it’s a good idea to regularly check the
calibration of your monitors to ensure that nothing has changed.
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