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1 • FRONT INPUT CONNECTORS: Connect the pre-output leads of the head unit to the input
connectors of the amplifier. This input will drive the end stage of the FRONT section.
2 • FRONT INPUT GAIN ADJUSTMENT CONTROL: input sensitivity ranges from 200 mV to
4V.
If the amplifier is to be connected to a head unit that is fitted with preamplified RCA outputs,
proceed as follows:
a) set the volume control of your unit to 3/4 of maximum output level;
b) set the input gain control to the point where the maximum sound level with no distortion is
obtained.
3 • FRONT CROSSOVER SELECTOR: it allows to select the output
mode of the amplifier by activating either the High-Pass or the Low-Pass
filter.
a) Flat: the amplifier reproduces the whole range of frequencies from
20 Hz to 20 kHz;
b) High-Pass: the amplifier reproduces a range of frequencies from
20 Hz to 30 Hz or from 20 Hz to 600 Hz as well as from 30 Hz to
600 Hz;
c) Low-Pass: the amplifier reproduces a range of frequencies from 20
Hz to 30 Hz or from 20 Hz to 600 Hz as well as from 30 Hz to 600 Hz.
4 • CONTINUOUS ADJUSTMENT OF THE FRONT HIGH-PASS AND LOW- PASS
FREQUENCIES: after positioning the filter, either High-Pass or Low-Pass, frequencies can be
adjusted between 30 and 600 Hz .
5 • 4CH/2CH INPUT MODE SELECTOR: it allows to select the amplifier's input configuration
as follows:
a) "4ch": the four input connectors have to be all connected to the pre-amplified outputs of
the unit to drive the four amplifier channels;
b) "2ch": to drive the four channels just the two Front input connectors have to be connected
to the pre-amplified outputs of the unit.
6 • 4CH/3CH/2CH OUTPUT MODE SELECTOR: it allows to select the amplifier's output
configuration as follows:
a) "4ch": 4 output channels are working, therefore the amplifier configuration can be as
follows: four stereo channels;
b) "3ch": 3 output channels are working, therefore the amplifier configuration can be as
follows: two stereo channels and one mono channel;
c) "2ch": 2 output channels are working, therefore the amplifier configuration can be as
follows: two mono channels.
7 • REAR CROSSOVER SELECTOR: it allows to select the output mode of the amplifier by
activating either the High-Pass or the Low-Pass filter.
a) Flat: the amplifier reproduces the whole range of frequencies from
20 Hz to 20 kHz;
b) High-Pass: the amplifier reproduces a range of frequencies from
20 Hz to 30 Hz or from 20 Hz to 600 Hz as well as from 30 Hz to
600 Hz;
c) Low-Pass: the amplifier reproduces a range of frequencies from
20 Hz to 30 Hz or from 20 Hz to 600 Hz as well as from 30 Hz to
600 Hz.
All manuals and user guides at all-guides.com
CONTROLS AND INDICATORS
2
Flat HI Low
20Hz
20KHz
Flat HI Low
30Hz
600Hz
Flat HI Low
30Hz
600Hz
Flat HI Low
20Hz
20KHz
Flat HI Low
30Hz
600Hz
Flat HI Low
30Hz
600Hz
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