Lexicon I-O|42, Owner'S Manual, Page: 10 / 32

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6. STEREO BUTTON AND STEREO LED - MIC/LINE/INST 1 AND
MIC/LINE/INST 2
This button toggles between Stereo mode and Mono mode for the Mic/
Line 1 input (or Instrument 1 input) and Mic/Line 2 input (or Instrument 2
input). The LED lights when Stereo mode is on.
In Stereo mode (Stereo LED is on), the Instrument 1 and Mic/Line 1 input
signals are sent to the Left Main Out, while the Instrument 2 and Mic/Line
2 input signals are sent to the Right Main Out.
In Mono mode (Stereo LED is off), each pair of input signals is mixed
together and sent to the Left and Right Main Outs as a mono signal. One
pair includes Instrument 1 or Mic/Line 1 and Instrument 2 or Mic Line 2.
7. 48v LED
Lights when phantom power is active for the Mic/Line 1 and 2 input pair.
Phantom power can be turned on for any combi-jack input pair via the 48V
buttons on the back panel. Dynamic microphones do not require phantom
power to operate. Most condenser microphones do require phantom power
to operate. If you are unsure about the phantom power requirements for
your microphone, consult your microphone’s documentation or contact the
manufacturer.
8. INSTRUMENT 2 LED
Lights when a 1/4" plug is inserted into the Instrument 2 jack on the right
side panel.
9. MIC/LINE/INST 2 GAIN KNOB
Adjusts the input gain level for Mic/Line 2 or Instrument 2.
10. MIC/LINE 3 GAIN KNOB
Adjusts the input gain level for Mic/Line 3.
11. STEREO BUTTON AND STEREO LED MIC/LINE 3 AND MIC/LINE 4
This button toggles between Stereo mode and Mono mode for the Mic/
Line 1 input (or Instrument 1 input) and Mic/Line 2 input (or Instrument 2
input). The LED lights when Stereo mode is on.
In Stereo mode (Stereo LED is on), the Mic/Line 3 input signal is sent to
the Left Main Out, while the Mic/Line 4 input signal is sent to the Right
Main Out.
In Mono mode (Stereo LED is off), each pair of input signals is mixed
together and sent to the Left and Right Main Outs as a mono signal. One
pair includes Mic/Line 3 and Mic/Line 4.
12. 48v LED
Lights when phantom power is active for the Mic/Line 3 and 4 input pair.
Phantom power can be turned on for each combi-jack input pair via the 48V
buttons on the back panel. Dynamic microphones do not require phantom
power to operate. Most condenser microphones do require phantom power
to operate. If you are unsure about the phantom power requirements for
your microphone, consult your microphone’s documentation or contact the
manufacturer.