Alpine R2-A75M User Manual

ALPINE R2-A75M/R2-A60F 68-44781Z33-B (EN/DE/FR/ES/IT/SE/RU/CS)ALPINE R2-A75M/R2-A60F 68-44781Z33-B (EN/DE/FR/ES/IT/SE/RU/CS)
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.
d) Set to the “HP-H” position when the
amplifier is used to drive a tweeter
system.
At this setting, Crossover Frequency
Adjustment Knob ( ) provides
adjustment between 400 Hz to 6
kHz. The frequencies below the
crossover point will be attenuated
at 12 dB/octave.
Crossover Frequency Adjustment Knob (HP/
LP FREQ.) (R2-A60F only)
Use this control to adjust the crossover
frequency between 50 Hz to 400 Hz.
Crossover Frequency Adjustment Knob (HP-H
FREQ.) (R2-A60F only)
Use this control to adjust the crossover
frequency between 400 Hz to 6 kHz.
Input Channel Selector Switch (CHANNEL-3/4)
(R2-A60F 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.
Filter Mode Selector Switch
(CHANNEL-3/4) (R2-A60F 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.
At this setting, Crossover Frequency
Adjustment Knob ( ) provides
adjustment between 50 Hz to 400
Hz. The frequencies below the
crossover point will be attenuated
at 12 dB/octave.
c) Set to the “LP” position when the
amplifier is used to drive a
subwoofer.
At this setting, Crossover Frequency
Adjustment Knob ( ) provides
adjustment between 50 Hz to 400
Hz. The frequencies above the
crossover point will be attenuated
at 12 dB/octave.
d) Set to “BP” if the amplifier is used to
drive a midbass or midrange
speaker.
Frequencies lower than the
specified frequency set by
Crossover Frequency Adjustment
Knob ( ), and higher than the
frequency specified set by
Crossover Frequency Adjustment
Knob ( ), are attenuated at 12 dB/
octave.
Crossover Frequency Adjustment Knob (HP/
LP/BP-L FREQ.) (R2-A60F only)
Use this control to adjust the crossover
frequency between 50 Hz to 400 Hz.
NOTE:
• When the Crossover Mode Selector Switch (
)
is set to [BP], adjust the Crossover Frequency
Adjustment Knob ( ) and ( ).
Crossover Frequency Adjustment Knob (BP-H
FREQ.) (R2-A60F only)
Use this control to adjust the crossover
frequency between 400 Hz to 6 kHz.
NOTES:
• When the Crossover Mode Selector Switch (
)
is set to [BP], adjust the Crossover Frequency
Adjustment Knob ( ) and ( ).
• When the Crossover Mode Selector Switch ( )
is set to [HP] or [LP], adjustment of the
Crossover Frequency Adjustment Knob ( ) is
disabled.
[BP-L] Adjustment range [BP-H] Adjustment range
50 Hz 400 Hz 6 kHz
[BP-L] [BP-H]
Adjustment range on the Bandpass Filter
Crossover Frequency

Alpine R2-A75M Specifications

General

Brand	Alpine
Model	R2-A75M
Category	Amplifier
Language	English