Soundstream Technologies 404 Stereo Amplifier User Manual


 
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KEY TO CALLOUTS
FUSE LED
-
Indicates blown
fuse.
POWER LED
-
Indicates amplifier power.
Subsonic
/
Hawkins Bass Control Switch
-
“SUB SONIC” to engage
the Sub Sonic filter at 13 Hz. “Hawkins Bass Control” to engage the high
pass filter
@
45 Hz with built-in boost at
+6dB
for optimum bass for any
Low Pass channel.
XOVER
Switch
-
(Channels
l&2)
Select “L.P.” for use with the internal low
pass filter, “IN” for use with the internal high pass filter, or “OUT” for use
with external crossover.
XOVER
Switch
-
(Channels
3&4)
Select “L.P.” for use with the internal low
pass filter, “H.P.” for use with the internal high pass filter, or “OUT” for use
with external crossover.
Inputs
-
Right and left channel RCA inputs for channels
3&4.
Input
LEVEL
-
Channels
3&4
input level control.
High Pass Control Adjustment
-
(Channels
3&4)
crossover frequency
control for the internal high pass filter.
Speaker Connection Terminal
-
Speaker connections for Ch’s
3&4.
Inputs
-
Right and left channel RCA inputs for channels
l&2.
Input LEVEL
-
Channels
l&2
input level control.
Low Pass Control Adjustment
-
Crossover frequency control for the in-
ternal low pass filter. Applies to any channel with the low pass filter en-
gaged.
High Pass Control Adjustment
-
(Channels l&2) crossover frequency
control for the internal high pass filter.
LINE OUTPUTS
-
Full range outputs to external amplifier. Note: Signal is
driven from channel
l&2
inputs.
Speaker Connection Terminal
-
Speaker connections for Ch’s l&2.
REMOTE
-
Remote turn-on input from the head unit. Accepts
+12V.
GND
-
Main ground connection. Bolt to a clean chassis point in the
vehicle.
+12V
-
Connected to a fuse or circuit breaker, then to the battery’s positive
terminal
Main Fuse
-
Main power supply fuses.
Stereo/Mono Switch
-
(Channels
l&2)
Select “MONO” for bridged mono
output (use right RCA input only). Select “STEREO” for stereo output.
Channels
3&4
INPUT SELECT
-
Selectable inputs from internal (from
channels
l&2)
or external (from channels
3&4
local RCA inputs).
Stereo/Mono Switch
-
(Channels
3&4)
Select “MONO” for bridged mono
output (use right RCA input only). Select “STEREO” for stereo output.