12
L2400 and L3200 Input and Output Connections
CHANNEL - MONO MIC/LINE INPUTS
The L Series mixers offer plenty of mono mic/line
and stereo line input channels, sixteen on the L2400
and twenty four on the L3200’s, for connecting a
variety of signal sources from microphones to line
level devices such as synthesizers, drum machines
and direct boxes. The mono mic/line inputs each
have a LINE level, Hi-Z (High Impedance) input, a
MIC level, Low-Z (Low Impedance) input; and an
Insert connector for effects. Both LINE and MIC
inputs are balanced, with MIC inputs compatible
with microphones of output impedance 50-600
Ohms and LINE inputs compatible with line level
devices of 600 Ohms. Following is a description of
the Mic/Line input connectors:
1 – INSERT - Send and Return jack
The L2400 and L3200 have a 1/4-inch, TRS (TIP/
RING/SLEEVE) Insert jack for connecting outboard
effects processors directly on the channel input. The
signal is sent on the tip (the Send) and returns on
the ring (the Return) of the connector.
2 – LINE - Line Level Input
Use these inputs to connect high impedance micro-
phones, synthesizers and drum machines. The LINE
inputs have a nominal operating level of -40dBV
through - 10dBV. TRS phone jack connector pin-out
- Sleeve: Ground, Tip: Hot (+), Ring: Cold (-)
NOTE: It is not possible to simultaneously use both
the LINE and MIC inputs on the same channel. For
each channel, use only one of the inputs as appro-
priate for the input source.
3 - MIC - Microphone Input
Use these inputs to connect Low Impedance micro-
phones and low-level signals from direct boxes.
The MIC inputs have a nominal operating level of
–50dBV through -20dBV. The MIC inputs also feature
+48V phantom power, allowing you to use condens-
er microphones. The Phantom Power is switched
LINE
INSERT
1
MIC
1
2
3
on/off simultaneously for channels 1 through 20(28).
XLR connector pin-out - Pin 1: Ground, Pin 2: Hot (+),
Pin 3: Cold (-)
Stereo Input Channels - 1/4-inch and XLR
Each of the L Series mixers has four stereo line level
input channels for connecting stereo signals like
those from CD or MP3 players, electronic keyboards,
drum machines and other line level signals. The first
two stereo inputs also include an extra mic pream-
plifier. Use these for connecting stereo signals like
those from CD or MP3 players, electronic keyboards,
drum machines and other line level signals. The
remaining stereo inputs have both 1/4-inch and RCA
connectors for connecting your gear. Following is a
description of the Mic/Line input connectors:
4 - Stereo Inputs - 1/4-inch jacks
The L2400 and L3200 have two pairs of 1/4-inch
jacks for connecting stereo line level sources. For
stereo inputs use the LINE L to connect the left chan-
nel and the LINE R to connect the right channel.
Use these inputs to connect high impedance micro-
phones, synthesizers and drum machines. The LINE
inputs have a nominal operating level of -40dBV
through - 10dBV. TRS phone jack connector pin-out
- Sleeve: Ground, Tip: Hot (+), Ring: Cold (-)
5 - XLR mic input
Use these inputs to connect Low Impedance micro-
phones and low-level signals from direct boxes.
The MIC inputs have a nominal operating level of
–50dBV through -20dBV. The MIC inputs also feature
+48V phantom power, allowing you to use condens-
er microphones. The Phantom Power is switched
on/off simultaneously for channels 1 through 20(28).
XLR connector pin-out - Pin 1: Ground, Pin 2: Hot (+),
Pin 3: Cold (-)
LINE 20
LINE 19
19/20
MIC
5
4