LEM blues series - MIC Input; MONO Input Channel

3
BLUES
MONO input channel
1. MIC INPUT
Balanced XLR connector (from -15dB to -45dB /1kOhm): receives the
microphone input signal on the channel.
2. LINE INPUT
Balanced JACK connector (from +10dB to 20dB /10kOhms): receives the
line input signal on the channel.
3. GAIN
Gain control: regulates the amplification of external signals (microphones,
instruments, etc.) fed into the channel. Has two sensitivities:
 LINE: (high level signals connected to the JACK connector) é from +10dB
(minimum gain) to -20dB (maximum gain);
 MIC: (microphones connected to the XLR connector) é from -15dB (minimum
gain) to -45dB (maximum gain).
4. HIGH
HIGH frequency control: gives a 15dB boost or cut with turnover frequency
at 10 kHz. This EQ control has a SHELVING curve.
5. LOW
LOW frequency control: gives 15dB boost or cut with a 70Hz turnover
frequency. This equalizer control acts exactly like the HI control (SHELVING
curve), the only difference being that the turnover frequency is set at 70Hz.
6. EFX
EFX send volume control: controls the quantity of signal sent to the BLUES built-
in DSP.
7. AUX/MON
AUX/MONITOR send volume control: a centre-dented pot which enables to use
either the AUX (POST-FADER, for the use of EXTERNAL EFFECTS) or MON (POST-
FADER, to be used for MONITORS) send. Works as follows:
 middle position (¥ position) é both sends are closed;
 pot turned to the left é AUX send open (and MON send closed);
 pot turned to the right é MON send open (and AUX send closed);
8. PAN
Centre-dented Pan pot for controlling the signals pan: regulates stereo
position of the signal with respect to the main L&R outputs
9. MUTE
Button for turning the channel on and off.
PEAK
SIGN
MIC
1
1
LINE
GAIN
+10
-20
0
MUTE
PAN
LOW
EFX
AUX
MON
70Hz
10KHz
HIGH
dB
A
U
X
M
O
N
R
L
-20
-5
+15
-15
+15
-15
dB
dB
+6
-6
+6
-6
dB
0
0
0
0
0
0
0
0
0
-10
C
-10
-20
-40
0
0
+4+4
-5-5
-10
-20
-40
0
0
0 0
MONO input channel
1
2
3
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5
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7
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12