LEM SWING 20FX - MONO Input Channel Controls; MIC and LINE Inputs; Channel INSERT and LO-CUT Filter; Gain and EQ Controls

5
MONO input channel
MIC INPUT
Balanced XLR connector: receives the microphone input signal on the
channel. This input is for use with microphones, but can also accept a wide
range of balanced or unbalanced low impedance signals, including the signal
coming from condenser microphones with +48V power supply (see Rear panel).
LINE INPUT
Balanced JACK connector: receives the line input signal on the channel. This
input can receive balanced or unbalanced high-impedance signals from
equipment with a high-level output. When this input is used, the MIC input is
disconnected.
CHANNEL INSERT
STEREO JACK connectors: allow to use an external device (equalizer,
compressor, etc.) to process the signal of the channels from 1 to 16. The
INSERT connectors have the signal SEND on the JACK TIP and the signal
RETURN on the JACK RING (see CONNECTOR CABLES).
LO-CUT
HI-PASS filter: allows to reduce the frequencies below 75 Hz with a 18 dB / Oct.
slope. Thanks to this filter it’s possible to eliminate unwanted subsonic frequencies,
like, for examples the microphones rumble due to the stage resonance.
GAIN
Gain control: regulates the amplification of external signals (microphones,
instruments, etc.) fed into the channel. The range for the MIC input is -15/-55
dB, while the range for the LINE input is +5/-35 dB.
HIGH
HIGH frequency control: gives a 15dB boost or cut at 12 kHz with a
“SHELVING” curve.
HI-MID
HI-MID frequency control: gives 12dB boost or cut at 3 kHz with a
“PEAKING” curve.
LO-MID
LO-MID frequency control: gives 12dB boost or cut at 800 Hz with a
“PEAKING” curve.
LOW
LOW frequency control: gives 15dB boost or cut at 80Hz with a
“SHELVING” curve.
MONO input channel
PRE-FADER
PRE-FADER
MONITOR 1
MONITOR 2
GAIN
10
10
0
0
-15dB
MIC
LINE
+5dB
-55dB
0dB (LINE)
-35dB
LINE
INSERT
MIC
MIC
LINE
1
LO-CUT
75 Hz
3 kHz
HI-MID
800 Hz
LO-MID
80 Hz
LOW
12 kHz
HIGH
+12-12
+12-12
+15-15
+15-15