Rane MM 12 - Manual (Page 4)

12. HEADPHONE LEVEL: This knob controls volume in the headphones. The MM 12 will
handle headphones with impedances between 8 ohms and 2000 ohms.
13. OVERLOAD INDICATOR: This red LED will light whenever the output level reaches 4
dB below clipping which is +15 dBm output level.
14. CUE BUTTON: Press this button IN to monitor the mix of that channel through
headphones.
15. MASTER LEVEL: This controls the final output level present at the output jack: it
increases or decreases the volume in the monitor speaker with out changing the mix levels.
16. MIX LEVEL CONTROLS: Each of these knobs controls the amount of input channel
material to be heard in each output mix. Each of the six outputs of the MM 12 has 8 level
controls which determine the particular mix for that monitor speaker.
17. BASS SWEEP CONTROL: This knob controls the center frequency of the bass filter in
the output parametric EQ section: frequency range is from -10 Hz to 1k Hz as shown on the
panel.
18. BASS BANDWIDTH SELECT BUTTON: In the WIDE position (out) the bandwidth of
the bass filter is one octave: in the NARrow position (in) the bandwidth is l/3 octave.
19. BASS BOOST/CUT CONTROL: This knob adjusts the amount of boost or cut of the bass
filter. Maximum boost is +12 dB and maximum cut is -15 dB.
20. TREBLE SWEEP CONTROL: This knob controls the center frequency of the treble
bandpass filter in the output parametric EQ section. Frequency range is from 1k Hz to 10k Hz
as indicated on the panel.
21. TREBLE BANDWIDTH SELECT BUTTON: In the WIDE (out) position the bandwidth is
one octave: in the NARrow (in) position the bandwidth is l/3 octave.
22. TREBLE BOOST/CUT CONTROL: This knob adjusts the amount of boost or cut of the
treble filter. Maximum boost is +12 dB and maximum cut is -15 dB.
23. EXPAND INPUT: This is a summing input located before the output level control (pre
fader). Plugging the outputs of a second MM 12 into these inputs will yield a 24-in/6-out
system with the same layout logic. This input is unbalanced.
24. OUTPUT JACK: This stereo 1/4” jack delivers an automatic balanced/unbalanced, low
impedance, high current output signal. Use a stereo 1/4” plug for balanced operation and a
mono 1/4” plug for unbalanced operation.
NOTE: REVERSIBLE LINE CORD
By removing two phillips screws the exit of the line cord can be changed from the backpanel to
the top panel. If the MM 12 is to be rack mounted, remove the two phillips screws next to the
line cord, push the line cord into the chassis about an inch, then twist it so that the metal tab
rotates 180 degrees. Pull the line cord outward until the metal tab is flush with the chassis, then
replace the two phillips screws. For table-top operation of the MM 12, the fine cord should exit
out the top panel—MM 12s are shipped in this configuration.