ALPINE S2-A36F/S2-A55V 68-44781Z80-A (EN/DE/FR/ES/IT/SE/RU)ALPINE S2-A36F/S2-A55V 68-44781Z80-A (EN/DE/FR/ES/IT/SE/RU)
10-EN
About Power Indicator
Power Indicator
Lights up when power is on.
Is off when power is off.
Indication color Status Solution
Blue Amplifier circuit is normal.
Red
(blinking)
Operating temperature is
high.
Turn down the volume of the head unit (input
signal).
Decrease the vehicle’s interior temperature to a
normal level.
The indicator color changes to blue.
Red Amplifier circuit is abnormal.
An electrical short has
occurred, or supply current is
too high.
Turn off the power supply and eliminate the cause.
Then turn on the unit and verify that the indicator
color has changed to blue.
If it remains red, turn off the unit and consult your
dealer.
Operating temperature is too
high.
Decrease the vehicle’s interior temperature to a
normal level.
The indicator color changes to blue.
Power supply voltage is too
high.
Use the correct power supply voltage.
The indicator color changes to blue.
Crossover Frequency Adjustment Knob
(LP FILTER) (S2-A55V only)
Use this control to adjust the crossover
frequency between 50 Hz to 400 Hz.
Bass EQ Adjustment Knob (S2-A55V only)
Add a 50 Hz bass boost up to +12 dB to tune
your bass response.
Crossover Mode Selector Switch (S2-A36F
only)
a) Set to the “OFF” position when the
amplifier will be used for driving
full range speakers or when using
an external electronic crossover.
The full frequency bandwidth will
be output to the speakers with no
high or low frequency attenuation.
b) Set to the “HP” position when the
amplifier is used to drive a tweeter/
midrange system. The frequencies
below the crossover point will be
attenuated at 12 dB/octave.
NOTE:
• In this case the maximum Bass EQ
boost level is reduced.
c) Set to the “LP” position when the
amplifier is used to drive a
subwoofer. The frequencies above
the crossover point will be
attenuated at 12 dB/octave.
Crossover Frequency Adjustment Knob
(S2-A36F only)
Use this control to adjust the crossover
frequency between 50 Hz to 400 Hz.
Mid Bass EQ Adjustment Knob (S2-A36F only)
Add a 100 Hz bass boost up to +12 dB to tune
your bass response.
Input Channel Selector Switch (CH-3/4)
(S2-A55V only)
a) This switch setting is for selecting
either 2-channel or 4-channel input
mode. When set to “1/2”, signal will
be copied from CH-1/2 and sent to
CH-3/4, eliminating the need for
Y-adapters.
b) Setting this switch to “3/4” will keep
both inputs, CH-1/2 and CH-3/4
independent.
A 4-channel source is required for
this mode.
Crossover Frequency Adjustment Knob (HP
FILTER) (S2-A55V only)
Use this control to adjust the crossover
frequency between 50 Hz to 400 Hz.
Input Channel Selector Switch (SUB)
(S2-A55V only)
a) When this switch is placed in the
“1+2+3+4” position, all the signals
are mixed and come out from the
subwoofer. This setting provides
signal to the subwoofer channel
when only 4 channel input is
available.
b) Setting this switch to “SUB” will
send the signal at the inputs of SUB
to subwoofer of the S2-A55V.