Specifications
Montarbo
9
CONTROLS AND CONNECTIONS
MONO INPUT CHANNEL
1 ➤ GAIN: adjust the gain (sensitivity) of the line and mic inputs,
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 / 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.
3 ➤ AUX: auxiliary send volume (post tones, pre fader). It sets the
level of that input channel in the auxiliary output.
4 ➤ EFF: effect send volume (post-fader and post tone). It adjusts
the quantity of channel signal that is sent to an external effect
connected to the send and return sockets.
5 ➤ PAN: this control allows to place the channel’s input signal
within the stereo image by assigning more or less of the signal
to the left or right master outputs.
6 ➤ Channel VOLUME control.
7 ➤ PEAK: peak LED indicator. It lights when the signal level is
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 level controls HF, MF and LF.
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connections:
8 ➤ MIC: balanced XLR microphone input (for microphones).
9 ➤ LINE/INSERT: unbalanced jack line input (for instruments and
high level sources). Also usable as stereo insert to process single
channels independently.
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) .
STEREO INPUT CHANNEL
10 ➤ GAIN: same as in the mono channel.
11 ➤ H.F / M.F / L.F.: same as in the mono channel.
12 ➤ AUX: same as in the mono channel.
13 ➤ EFF: same as in the mono channel.
14 ➤ BAL: stereo balance. Allows to adjust the level of the input
signal in the left or right master outputs. If the channel is used as
a mono channel it becomes a PAN control.
15 ➤ Channel VOLUME fader.
16 ➤ CL: same as in the mono channel.
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connections:
17 ➤ MIC: balanced mono XLR input for mic-level signals.
18 ➤ L/R: unbalanced jack line inputs for stereo instruments.
For 'mono' connections use 'L/mono' input.
STEREO DIGITAL EFFECTS PROCESSOR
With 56-bit internal DSP and 18-bit Delta-Sigma conversion, the
internal effect (16 programs, freely alterable) provide high perfor-
mance digital audio processing combined with extremely
easy operation.
19 ➤ Program LED display: shows the number of the currently
selected program.
20 ➤ PROGRAM: program selection key allows to select any
memory number to call one of the 16 programs available.
▼ = decrement key
▲ = increment key
21 ➤ ON: effect on/off button, with red LED indicator.
22 ➤ PARAMETER control: allows to alter the parameters of the 16
basic presets.
23 ➤ AUX: auxiliary send. Allows to adjust the level of the stereo
effect in the monitor mixed output.
24 ➤ TONE control: Turning this control clockwise produces a
gradual decrease in high frequencies. Fully anticlockwise the
response is flat.
25 ➤ BAL: balance. Allows to adjust the level of the stereo signal
in the L and R master outputs.
26 ➤ VOLUME fader.
27 ➤ CL: peak LED indicator. Occasional blinking is normal. When
it lights continuously it indicates that the signal is near to clipping
and it is necessary to reduce the effect send volume on individual
channels .
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connections:
28 ➤ FT/SW: jack socket for connection of remote footswitch.
It allows remote control enabling/disabling of the built-in effect
processor. This is possible only when the 'ON' button is pushed.