TC Electronic BMC-2, User Manual, Page: 11 / 22

– Press and hold the REF button for five seconds
until the meters blink. Do not release the REF
button until the meters are lit steadily again.
If you prefer, you can also program the DIM function to
be activated once the REF button is pressed.
The factory default setting for REF preset gain is -18 dB.
You can calibrate both sets of speakers
independently, but headphones calibration
occurs every time a new REF level is set.
7 – ALT Button
ALT stands for “Alternative Monitors”. The ALT function
allows you to cross-fade analog speaker outputs and
ALT outputs (the default ALT output is SPDIF/AES3).
Per default, the ALT function is assigned to the
SPDIF/AES3 out. However, you can choose to assign
it to ADAT or TOS instead, using the method described
below.
Assigning ALT to a digital output of your choice:
–
First disengage ALT. ALT is disengaged when the
ALT button’s LED is not lit.
– Now select the digital output format you would like
to assign ALT to by pressing the SPDIF, ADAT or
TOS button in the “Input Select” section.
– After selecting the desired input, press and hold
ALT.
At first, the format previously assigned to ALT is lit.
After approximately five seconds, the newly
assigned format will blink. Do not release the ALT
button until the LED is lit steadily again.
The new output set is now assigned to the ALT
function.
OPERATION
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