Advertisement
Mounting the Amplifier
Mark the location for the mounting screw holes by positioning the amplifier where you wish to install it and
use a scribe (or one of the mounting screws) inserted in each mounting hole to mark the mounting surface.
If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen.
Drill pilot holes in the mounting surface for the mounting screws and insert the mounting screws into these
holes. Tighten them securely.
Note: Before beginning your installation, be sure to take note of any wires, lines or other devices in your
vehicle which may be located behind any mounting surface.
High Level Inputs
If the HIGH LEVEL INPUTS are used, do not use the LOW LEVEL RCA inputs at the same time.
The IMPACT LK series 2-Channel amplifiers use ONE High Level Input for both channels and the
The IMPACT LK Series 4-Channel amplifiers use TWO of these connectors-one for each pair of
channels.
Two Channel Amplifiers :
HEAD UNIT
LEFT CHANNEL( +)
From HEAD
LEFT CHANNEL( -)
UNIT
CHASSIS GROUND
SPEAKER
RIGHT CHANNEL (-)
OUTPUT
RIGHT CHANNEL (+)
Four Channel Amplifiers:
CHANNEL 4 (+)
CHANNEL 4 (-)
CHASSIS GROUND
CHANNEL 3 (-)
CHANNEL 3 (+)
HEAD UNIT
From HEAD
CHANNEL 1 (+)
UNIT
CHANNEL 1 (-)
SPEAKER
CHASSIS GROUND
OUTPUT
CHANNEL 2 (-)
CHANNEL 2 (+)
Low Inputs
Crossover
Bass
Low Pass
High
R
L
Pass
L
R
Level
Boost
Freq
145
Power
100
40
155
160
35
Full
Min Max
0 + 18 dB
High Inputs
Remote
Pre outputs
CH 1/2 Crossover
CH 3/4 Crossover
4
2
High
Low Pass
CH
CH
Bass
Low Pass
High
Pass
Pass
Level
Boost
Freq
Freq
Level
Power
100
145
100
145
40
155
40
155
35
160
35
160
Full
Min
Max
Min Max
0 + 18 dB
Full
CH 4
CH 3
CH 2
CH 1
Remote
CH
3
1
CH
High Inputs
-4-
Low Level Input Wiring
Two Channel Amplifiers
Power
Protect
Four Channel Amplifiers
Power
Protect
Low Inputs
Bass
R
L
L
R
Level
Boost
Freq
100
40
35
Min Max
0 + 18 dB
High Inputs
Pre outputs
LEFT
RIGHT
INPUT
INPUT
From OUTPUT
of HEAD UNIT
CH 1/2 Crossover
4
2
CH
CH
High
Low Pass
Bass
Pass
Level
Boost
Freq
Freq
Level
100
145
100
40
155
40
35
160
35
Full
Min
Max
Min Max
0 + 18 dB
CH 4
CH 3
CH 2
CH 1
3
CH
1
CH
High Inputs
REAR
FRONT
INPUTS
INPUTS
From OUTPUT
of HEAD UNIT
-5-
Crossover
Low Pass
High
Pass
Protect
145
155
160
Full
Remote
CH 3/4 Crossover
Low Pass
High
Pass
Protect
145
155
160
Full
Remote
Advertisement
