Rane MLM 82a 2003 version - Manual (Page 4)

Manual-
©Rane Corporation 080 7th Ave. W., Mukilteo WA 9875-5098 TEL 5-55-6000 FAX 5-7-7757 WEB www.rane.com
OPERATING INSTRUCTIONS
MONO MICROPHONE/LINE LEVEL INPUTS 1-4
The microphone pre-amps in the MLM 82a have a combina-
tion gain trim, Level control. The LEVEL control adjusts both
the input dynamic range and mix level. There is no need for the
typical independent gain trim control found on most mixers.
The PHANTOM POWER switch activates 15 volt Phantom
Power for all Inputs selected for microphone use. With LINE
selected, Phantom Power is defeated only in that Input. 15 volts
is sufficient power for all but the most esoteric condenser micro-
phones. If in doubt, check the manufacturer’s microphone specs.
SIGNAL PRESENT/OVERLOAD INDICATORS
The MLM 82a has four bi-color indicators for Signal Pres-
ent/Overload (green/red). Green indication occurs when there
is a signal present above -30 dBu. This lamp should be glowing
green when signal is present. If this lamp is off, check these pos-
sibilities:
A. The Input may not be connected.
B. There is little or no signal present at the moment.
C. There is a Mic connected to a channel switched to LINE.
D. The Mic needs Phantom Power (See Rear Panel, 2).
E. The LEVEL control needs to be increased (clockwise).
F. The cable is not wired properly (See the Sound System Inter-
connection RaneNote).
A red glowing LED indicates that the levels are so high that
distortion due to clipping is occurring or imminent.
Check these conditions:
A. The LEVEL control may be turned too high.
B. The Output of the preceding device may need to be reduced.
C. The Input may be switched to MIC with a line-level source.
Switch the Input to LINE.
STEREO LINE INPUTS 5 through 8 do not have overload
indicators. Because 12 dB of gain is added after the STEREO
LINE INPUT LEVEL controls, it is possible to overload a line
input without an overload indication. The A and B OUTPUT
OL indicators can overload from the Line Inputs if the OUT-
PUT LEVEL controls are set to 10. Although a single Input may
be at unity gain, multiple active Inputs mixed together can cause
an overload. If the OL indicators illuminate, just turn down the
OUTPUT LEVELS until the overload stops—mix ratios will
not change.
STEREO LINE LEVEL INPUTS 5-8
The STEREO LINE INPUT LEVEL controls adjust both
A and B Inputs equally. Use the OUTPUT LEVEL controls
together for overall output adjustment, or separately to control
balance.
A single mono input may be used for the A and/or B inputs.
Any mono source connected to A will go to the A output. Any
mono source connected to the B input will go to the B output.
If you wish one or two mono sources to go to both A and B
outputs, press the MONO switch. If you wish to mono a single
stereo source and have it present in A and B outputs, press the
mono switch. STEREO LINE INPUTS 5-8 may each be inde-
pendently set for mono operation.
HOLE PLUGS
To protect the setting of any rotary control, remove the
knob by simply pulling it off, and snap in one of the hole plugs
included with your unit.
To protect the entire front panel, use a Rane SC 1.7 Security
cover.
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