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400W x 4CH
LA870LA870
LA670/870
Features and Controls
3
LA370/470/570/770/970/1470/1870/2070
Features and Controls
Protection LED Indicator
The protection circuitry in the amp will disable it if it
senses an input overload, speaker short circuit, or
thermal overload conditions. Should this occur, the
PROTECT LED will be illuminated. At that time, it is
important that you check to determine what has caused
the protection circuitry to become activated.
If the amp shut off because of a thermal overload,
allow it to cool down before attempting to restart.
If the shutdown occured because of an input overload,
or speaker short circuit, be sure to correct these
conditions before attempting to restart the amp.
To reset the amp, turn the REMOTE power off and on
again.
Power LED Indicator
This LED is illuminated when the REMOTE ON
system is turned on.
11
This unit is provided with gold-plated RCA input
jacks. Using RCA-RCA type patch cords, connect
these inputs to the RCA outputs from your head
unit.
Low Level Input (High Impedance)
10
High Level Input (Low Impedance)
Use these if your car stereo does not have
RCA output jacks: connect the speaker output from
the head unit to these inputs
9
Permits you to adjust the crossover frequency from
80 Hz to 2.5 kHz to suit the tweeters
High Pass Control
8
Permits you to adjust the crossover frequency from 35
Hz to 400 Hz to suit the subwoofers
Low Pass Control
7
Allows you to increase the bass signal level sent to the
speakers
Bass Boost Control
6
In a full range system, set this to FULL. If the amp is
being used to power a crossover system, set to either
HPF or LPF as needed.
Crossover Mode Switch
5
Input Level Control
Use this control to match the output of the head unit
to the amplifier. If distortion is present, reduce the
setting of this control.
4
Power Supply Terminals
3
Protects the amplifier as well as the automobile electrical
system from short circuit conditions.
Fuse
2
These terminals are 14K Gold plated for high conductivity
and minimum impedance loss. The terminals face
upwards for easy wiring in tight situations.
Speaker Terminals1
1212
11
10
9
8
7
6
5
4
3
2
1
1212
Remote Bass Boost (LA370 without)
Plug in the Remote Bass Boost Control wire in here.
13
13
Protection LED Indicator
The protection circuitry in the amp will disable it if it
senses an input overload, speaker short circuit, or
thermal overload conditions. Should this occur, the
PROTECT LED will be illuminated. At that time, it is
important that you check to determine what has caused
the protection circuitry to become activated.
If the amp shut off because of a thermal overload,
allow it to cool down before attempting to restart.
If the shutdown occured because of an input overload,
or speaker short circuit, be sure to correct these
conditions before attempting to restart the amp.
To reset the amp, turn the REMOTE power off and on
again.
Power LED Indicator
This LED is illuminated when the REMOTE ON
system is turned on.
This unit is provided with gold-plated RCA input
jacks. Using RCA-RCA type patch cords, connect
these inputs to the RCA outputs from your head
unit.
Low Level Input (High Impedance)
High Level Input (Low Impedance)
Use these if your car stereo does not have
RCA output jacks: connect the speaker output from
the head unit to these inputs
Permits you to adjust the crossover frequency from
80 Hz to 2.5 kHz to suit the tweeters
High Pass Control
Permits you to adjust the crossover frequency from 35
Hz to 400 Hz to suit the subwoofers
Low Pass Control
Allows you to increase the bass signal level sent to the
speakers
Bass Boost Control
In a full range system, set this to FULL. If the amp is
being used to power a crossover system, set to either
HPF or LPF as needed.
Crossover Mode Switch
Input Level Control
Use this control to match the output of the head unit
to the amplifier. If distortion is present, reduce the
setting of this control.
Power Supply Terminals
Protects the amplifier as well as the automobile electrical
system from short circuit conditions.
Fuse
These terminals are 14K Gold plated for high conductivity
and minimum impedance loss. The terminals face
upwards for easy wiring in tight situations.
Speaker Terminals
Remote Bass Boost
Plug in the Remote Bass Boost Control wire in here.
11
2
16
3
12
9
10
54 7 8
13
11
2
16
3
12
9
10
54 7 8
13
600W x 2CH
LA970LA970