Drawmer MC2.1 Monitor Controller - Manual (Page 19)

1 9 MC2.1 - Monitor Controller
11. On the underside of the MC2.1 rotate the Right A trim clock-wise until the SPL
meter reads the desired level.
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 Speaker
A 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 MC2.1 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. 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.