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CONTROLS AND CONNECTIONS
MONO INPUT CHANNEL
1
GAIN: adjust the gain (sensitivity) of the line and mic inputs,
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allowing connections of signal sources (both line and mic level)
having a wide range of signal level. As a practical rule, the GAIN
control must be set to the maximum allowable level that will not
activate the peak level indicator (PEAK). This will maximize the
signal to noise ratio.
2
H.F / M.F. kHz / M.F. dB / L.F: 3-band Equalizer with parametric
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control of the mid range. The High and Low controls act on fixed
frequency bands, the Mid control allows to choose the frequency to
be boosted or cut.
H.F: adjusts the amount of boost or cut in the high frequency
range (±15dB@15kHz). Turning the control clockwise increases the
amount of high frequencies, counter-clockwise decreases it.
The response is flat at the center position.
M.F. kHz: chooses the frequency to be boosted or cut (0,18÷3kHz).
M.F. dB: adjusts the amount of boost or cut (±15dB) in the frequen
cy choosen by means of the M.F. kHz control.
Note: If the M.F.dB control is set at '0' (centre) there will be no alteration
in the mid frequency band (independently of the M.F.kHz control setting).
L.F: adjusts the amount of boost or cut in the low frequency range
(±15dB@50Hz). Turning the control clockwise increases the amount
of low frequencies, counter-clockwise decreases it. The response is
flat at the center position.
3
A / B / C / D / E / F: monitor sends volumes (post eq., pre fader).
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They set the level of that input channel in the monitor outputs.
4
E1 / E2: effect sends volumes (post-fader and post eq.).
◗
They adjust the quantity of channel signal that is sent both to the
correspondent built-in effect and to an external effect connected
to the 'EFF SEND 1/2' and 'STEREO EFF. RET. 1/2' sockets.
Note: On the channels where you don't want to have neither the internal
effect nor the external effect, turn this knob fully anticlockwise. Should
the external effect only be required, then switch the internal effect off.
5
PFL: allows to check the level of the channel's output signal
◗
by means of the PFL level indicator (57) and to listen to it on the
headphones, even if the channel is switched off or the fader is
closed. It is so possible to adjust the equalizer without sending the
channel's signals to the outputs. If more than one PFL switch is on,
the phones amplifier and the PFL LED indicator will receive the sum
of the selected channel's signals.
Note: To allow headphone listening of a PFL signal, the PFL switch of the
master module's headphone amplifier (56) must be pressed.
6
PAN: this control allows to place the channel's input signal
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within the stereo image by assigning more or less of the signal
to the left and right master volume controls.
7
ON: channel's main on/off switch with green LED indicator.
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When pushed, the channel's signal is sent to the L/R master outputs,
A/B/C/D aux outputs and E1/E2 effect sends. We suggest to switch
off every unused channel, to reduce the noise in the outputs.
8
PEAK: peak LED indicator. It lights when the signal level is
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approaching the maximum (clipping) allowable level. The signal
is sampled in two points of the channel's signal path: • after the
input amplifier (micro and line), • after the equalizer.
If the LED is continuously lighted, you must reduce the input GAIN
or modify the equalizer settings, reducing the boost introduced by
the tone controls.
9
Channel VOLUME fader.
◗
10
48V DC: pushbutton for on/off switching of the 48V
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phantom power supply (the phantom power supply allows use
of condenser microphones).
Note: Before pushing this button, make sure that the unit is turned off or
that all the slider controls are to their lowest settings.
connections:
◗
11
MIC: balanced XLR microphone input (for microphones).
◗
12
LINE / INSERT IN: unbalanced jack line input (for instruments
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and high level sources). Also usable as insert input (return).
Note: Do not use both the MIC and the LINE input of one channel at the
same time). Do not connect instruments or other high level sources to the
MICRO inputs (this will result in distortion due to excessive signal level).
Do not connect microphones to the LINE inputs (the resulting signal will
be of low level and low quality) .
13
INSERT OUT (send): jack mono input. Allows inserting an
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external device (e.g. an effect or an equalizer) in the channel's
signal path.
The signal is taken at the microphone preamp output.
STEREO INPUT CHANNEL
14
GAIN: same as in the mono channel.
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15
MONO: this switch selects the right (R) line input as a mono
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input, connecting it to both L and R sections.
16
H.F / M.F / L.F.: 3-band Equalizer
◗
H.F.: adjusts the amount of high frequencies giving up to 15dB of
boost or cut at 15kHz.
M.F.: adjusts the amount of mid frequencies giving up to 15dB of
boost or cut at 600Hz.
L.F: adjusts the amount of low frequencies giving up to 15dB of
boost or cut at 50Hz.
Note: Turning the control clockwise increases the amount of high, mid or
low frequencies, counter-clockwise decreases it. The response is flat at the
center position.
17
A / B / C / D / E / F: same as in the mono channel.
◗
18
E1 / E2: same as in the mono channel.
◗
19
PFL: same as in the mono channel.
◗
20
BAL: stereo balance. Allows to adjust the level of the input
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signal in the left or right master outputs. If the channel is used as
a mono channel it becomes a PAN control.
21
ON: channel's main on/off switch. Same as in the mono
◗
channel.
22
PEAK: same as in the mono channel.
◗
23
Channel VOLUME fader.
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connections:
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24
LINE L/R: balanced XLR LINE L/R inputs.
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25
LINE L/R: balanced JACK LINE L/R inputs for stereo
◗
instruments. For 'mono' connections use 'R / mono' input
and push the MONO button (15).
13
ENGLISH
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