13
4 Channel Amplifier - Features
SX-480 / SX-4120
X-OVER
10Hz
1.2kHz
10Hz
1.2kHz
30Hz
150Hz
30Hz
150Hz
0dB
12dB
0dB
12dB
4V
0.2V
4V
0.2V
LPF/BP
HPF
FULL
LPF/BP
HPF
FULL
TWIN SUB
INPUT MO DE
CH1/2
CH3/4
ON
OFF
2CH
4CH
L
R
REMOTE
CONTROL
BASS
BOOST
LOW
PASS
INPUT
LEVEL
HIGH
PASS
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
X-OVER
INPUT
OUTPUT
POWER PROTECT
CH4
CH3
CH2
CH1
BASS
BOOST
LOW
PASS
INPUT
LEVEL
HIGH
PASS
CONTROLS CH 3 / 4
CONTROLS CH 1 / 2
INPUT LEVEL
This allows you to match the amplifier
input sensitivity to the output level of the
source (head unit) and is continously
variable between 0.2 up to 4 Volts.
LOW PASS
The built in low pass filter is fully
variable from 30Hz up to 150Hz,
with a rolloff of 12dB/octave
HIGH PASS
The built in high pass filter is
fully variable from 10Hz up to
1.2KHz, with a rolloff of
12dB/octave
INPUT
Accepts line level (RCA) inputs from
0.2 to 4 Volts
INPUT MODE SELECT
Allows you to choose between “2CH”
or “4CH” line signal input.
X-OVER SELECT
This switch will route the output of the full range
(FULL), or a low pass (LP), or the output of the high
pass (HP) filter to the internal power amplifier.
When this switch is set on LP the HP Control is
activated as SubsonicFilter.
OUTPUT
Provides a full range line level (RCA)
output that allows the use of additional
amplifiers.
BASS BOOST
Allows you to adjust the bass
boost from 0dB up to 12dB.
Only for LP-Mode!
REMOTE CONTROL
These jack are for use with the enclosed
remote control. Only the low pass signal
will be controlled.
POWER - LED
It indicates amplifier has turn on signal
PROTECT - LED
It indicates the fault operation of the
amplifier. When the fault conditions
(overload, excessive heat or short
circuit of speaker) arise, the protection
curcuit is engaged to protect both the
speakers and the amplifier against
damage.
Look at page 9 Trouble Shooting!
TWIN SUB - CH 1&2
When this Switch is set to ON Position
the same adjusted parameters of
CH 3 & 4 for High Pass, Low Pass and
Bass Boost are taking effect on
CH 1 & 2. Only the Input Level must be
changed. This is only suitable for an
operation with 2 Subwoofers.
