F E A T U R E S A N D C O N T R O L S
V I B E 2 3 2 / 2 4 2 / 2 5 2 / 2 6 2 / 2 9 2
Bass
High
Pass
Low
Remote
Level
Mode
Boost
Pass
PWR
R
L
PROT
On
Off
Low
Full
High
Min
40Hz
350Hz
Max
40Hz 3kHz
Line
Out
Line
Input
I N P U T L E V E L C O N T R O L S
Enables the matching of input levels to the
output levels from the head unit (or other
signal source).
P O W E R & P R O T E C T I O N I N D I C A T O R S
Provide instant information on status of amplifier,
including short-circuit and thermal overload alerts.
R E M O T E C O N T R O L
H I G H P A S S F I L T E R
When Crossover Mode Selector is on High Pass Mode,
this control limits the frequencies which will be
distributed to the speakers to those above the value to
which this is set within the range 40Hz-3kHz.
B A S S B O O S T C O N T R O L
Increases sound level in lower frequencies by 18dB.
L O W P A S S F I L T E R
When Crossover Mode Selector is in Low Pass Mode,
this control limits the frequencies which will be
distributed to the speakers to those below the value
to which this is set within the range 40-350Hz.
C R O S S O V E R M O D E S E L E C T O R
Determines the mode of built-in crossover:
low pass (permits only low frequency signals to
pass to speakers), high pass(permits only high
frequency signals to pass to speakers), or flat.
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F E A T U R E S A N D C O N T R O L S
V I B E 4 1 2 / 4 2 2 / 4 3 2
Remote
High
Pass
High
Pass
Power
CH2
CH4
CH3
Protect
40Hz 3kHz 40Hz 3kHz
Bass
Level
Bass
Level
Low pass Low pass
Mode
Mode
Boost
Boost
Full
Off
On
Off
Full
Low
pass
Min
Min
Max
Max
40Hz 350Hz40Hz 350Hz
Low
On
Line
Line
Out
Line
out
Line
CH1
passHigh
High
input
pass
input
pass
I N P U T L E V E L C O N T R O L S
P O W E R & P R O T E C T I O N I N D I C A T O R S
Provide instant information on status of amplifier,
including short-circuit and thermal overload alerts.
Enables the matching of input levels to the
output levels from the head unit (or other
signal source).
R E M O T E C O N T R O L
B A S S B O O S T C O N T R O L
Increases sound level in lower frequencies by 18dB.
C R O S S O V E R M O D E S E L E C T O R S
Destermine the mode of buit-in crossovers:
low pass (permits only low frequency signals to pass
to speakers), high pass (permits only high frequency
signals to pass to speakers), or flat.
H I G H P A S S F I L T E R
When Crossover Mode Selector is in High Pass Mode,
this control limits the frequencies which will be
distributed to the speakers to those above the value to
which this is set within the range 40 Hz-3 kHz.
L
O W
P
A S S
F
I L T E R
When Crossover Mode Selector is in low Pass Mode,
this control limits the frequencies which will be
distributed to the speakers to those below the value
to which this is set within the range 40-350 Hz
—
2
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F E A T U R E S A N D C O N T R O L S
V I B E 5 3 2
CHANNEL 1+2
CHANNEL 3+4
Level
Mode
CHANNEL 5+6
Bass
Boost
High
Pass
Low
High
Pass
Level
CH4
Mode Level
Mode
Pass
CH2
CH1
CH6
CH5
Full
Band
On
Low
Pass
500Hz
Full
Full
Off
Min
40Hz
Min
40Hz
Min
Max
Max
4kHz
Max
4kHz
40Hz
High
pass
pass
High
pass
Input Mode
PROT
PWR
Ch4
Ch6
40Hz 500Hz
40HHz i4gkhHz
Low
Remote
Low Input
Low Input
Low Input
Band
CH3
Pass
Pass
Pass
I N P U T L E V E L C O N T R O L S
˄ A L L C H A N N E L S ˅
REMOTE CONTRROL
Enables the matching of input levels
to the output levels from the head unit
(or other signal source).
LOW PASS FILTER
When Crossover Mode Selector is in Low Pass
Mode,this control limits the frequencies which
will be distributed to the speakers to those below
the value to which this is set.
P O W E R / P R O T E C T I O N I N D I C A T O R S
Provide amp power status and short-circuit
and thermal overload alerts.
4/6 CH INPUT MODE SELECTOR
Determines internal circuit routing depending
on whether or not a discrete Channel 5/6 input
signal is available from head unit.
C
R O S S O V E R
( A L L C H A N N E L S )
M
O D E
S
E L E C T O R S
Determine the mode of built-in crossovers;
low pass (permits only low frequency signals to
pass to speakers), high pass (permits only high
frequency signals to pass to speakers), or flat.
BASS BOOST CONTROL
( C H A N N E L 5 / 6 O N L Y )
Increases sound level in lower frequencies by18dB.
H I G H P A S S F I L T E R S
When Crossover Mode Selector is in High Pass
Mode, these controls limit the frequencies which
will be distributed to the speakers to those above
the values to which these are set.
B A N D P A S S C R O S S O V E R C O N T R O L S
( C H A N N E L 3 / 4 O N L Y )
When Ch 3/4 Crossover Mode Switch is in
Band Pass position, these two controls are used
to establish the upper and lower frequency range
limits for the signals which will be distributed
to the Ch 3/4 speakers.
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S P E C I F I C A T I O N S
2 channel
amplifier
2 channel
amplifier
2 channel
amplifier
2 channel
amplifier
MODEL
Vibe232
Vibe242
2x500W
2x1000W
1x2000W
2x840W
2 Ohm
Vibe252
2x750W
2x1500W
1x3000W
2x1200W
2 Ohm
Vibe262
2x1050W
1x2100W
1x4200W
2x1750W
2 Ohm
RMS at 4 Ohms
MAX at 4 Ohms
At 4 Ohms Bridged
RMS at 2 Ohms
Min. Speaker Impedance
T.H.D
2x300W
2x600W
1x1200W
2x500W
2 Ohm
0.05%
0.05%
0.05%
0.05%
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
Frequenrcy Response
Input Sensitivity
Input Impedance
S/N Ratio
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
>95dB
>95dB
>95dB
>95dB
>60dB
>60dB
Channel Separation
>60dB
>60dB
Crossover Filters
Low Pass
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-350Hz
40Hz-3kHZ
n/a
High Pass
Bandpass
Bass Boost
+18dB
+18dB
+18dB
+18dB
Dimensions(Inches)
Fuse(s)
10.25x2.36x15(WxHxL)
30Ax2
10.25x2.36x12(WxHxL)
30Ax2
10.25x2.36x21(WxHxL)
40Ax3
10.25x2.36x19(WxHxL)
25Ax3
—
4
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2 channel
amplifier
4 channel
amplifier
4 channel
amplifier
4 channel
amplifier
5 channel
amplifier
Vibe292
2x1250W
2x2500W
1x5000W
2x2100W
2 Ohm
Vibe412
4x125W
4x250W
2x500W
4x200W
2 Ohm
Vibe422
4x250W
4x500W
2x1000W
4x400W
2 Ohm
Vibe432
4x500W
4x1000W
2x2000W
4x850W
2 Ohm
Vibe532
4x250W+1x600W
4x500W+1x1200W
2x1000W+1x1200W
4x575W+1x875W
2 Ohm
0.05%
0.05%
0.05%
0.05%
0.05%
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
10Hz-40kHz,-1dB
100mV-4000mV
20 kOhm
>95dB
>95dB
>95dB
>95dB
>95dB
>60dB
>60dB
>60dB
>60dB
>60dB
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-500Hz
40Hz-350Hz
40Hz-3kHZ
n/a
40Hz-4kHZ
variable,40Hz-4kHz(HPF)
40Hz-500Hz(LPF)
+18dB
+18dB
+18dB
+18dB
+18dB
10.25x2.36x23(WxHxL)
40Ax3
10.25x2.36x14.75(WxHxL) 10.25x2.36x16.36(WxHxL) 10.25x2.36x23.6(WxHxL)
10.25x2.36x11.6(WxHxL)
15Ax3
20Ax3
25Ax3
30Ax2
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I N S T A L L A T I O N
PRECAUTIONS
1. Find a suitable location in the vehicle to mount the amplifier.
Before you drill or cut any holes, investigate your
car’s layout very carefully. Take care when you work
near the gas tank, fuel lines, hydraulic lines and
electrical wiring.
2. Make sure there is sufficient air flow around the intended mounting location.
3. Bolt the amplifier to the mouning surface.
4. Connect the power ground terminal to the nearet point on the chassis of the car. Keep
this ground wire less than one meter (39”) in length. Use 8 gauge wire.
Do not operate the amplifier when it is unmounted.
Attach all audio system components securely within
the automobile to prevent damage, especially in an
accident.
5
. Connect the remote terminal to the remote output of the head unit using 14 gauge wire.
6. Connect an empty fuse holder within 300 mm (12”) of the battery and run 8 gauge or
larger high quality cable from this fuse to the amplifier location.
Do not mount this amplifier so that the wire
connections are unprotected or in a pinched
condition, or likely to be damaged by nearby objects
Be sure to select a location inside your vehicle which
has adequate ventilation.
7. Make sure there is no fuse in this fuse holder. Then make the connection to the “BATT”
connection on the amplifier.
.
8. If multiple amplifiers are being used, use cables (each with its own fuse at the battery)
or a#o or #2 cable from the fuse holder at the battery to a distribution block at or near
the amplifier’s location.
Before making or breaking power connections in
your system, disconnect the vehicle battery. Confirm
that your head unit or other equipment is turned
off while connecting the input jacks and speaker
9. Connect all line inputs and outputs using high-quality RCA-RCA cables.
10. Insert fuse (s) at the battery fuse holder(s).
11. Recheck all connections before powering up.
terminals
.
12. Set all level controls to their least sensitive positions and set all crossover controls,
switches, etc. to the desired frequency or position.
13. Once the system is powered up, set all the volume control on the head unit to about the
2 o’clock position, and then set all the amplifiers’ level controls for maximum output level.
If you need to replace the power fuse, only replace
it with a fuse identical to that supplied with the
system. Using a fuse of a different type or rating
may result in damage to your system which isn’t
covered by the manufacturer’s warranty.
14. Further fine tuning of the various controls may be necessary to obtain the desired results.
—
6
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VIBE232/242/252/262/292
2 CHANNEL STEREO CONFIGURATION
Bass
High
Pass
Low
Remote
Level
Mode
Boost
Pass
PWR
R
L
PROT
On
Off
Low
Full
High
Min
40Hz 350Hz
Max
40Hz 3kHz
FRONT
Line
Out
Le
t
LEVEL
to REMOTE SUBWOOFER
LEVEL CONTROL
MIN
MAX
TO OUTPUT FROM HEAD UNIT
POWER
SPEAKERS
REAR
-
-
+
+
LEFT
RIGHT
FUSES
BRIDGED MODE
REM
+
12V
GND
VIBE232/242
ONLY
-
+
SPEAKER IMPEDANCE
2-4 OHM
TO BATTERY
+
TO REMOTE OUTPUT
FROM HEAD UNIT
RIGHT
LEFT
SPEAKER
+
SPEAKER
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7
S Y S T E M W I R I N G
2 CHANNEL BRIDGED MODE CONFIGURATION
VIBE232/242/252/262/292
Bass
High
Level
Low
Remote
Mode
Boost
Pass
Pass
PWR
R
PROT
On
Off
Low
Full
High
Min
40Hz 350Hz
Max
40Hz 3kHz
FRONT
L
Line
Out
Le
t
LEVEL
to REMOTE SUBWOOFER
LEVEL CONTROL
TO OUTPUT FROM HEAD UNIT
MIN
MAX
POWER
SPEAKERS
REAR
-
-
+
+
LEFT
RIGHT
FUSES
BRIDGED MODE
REM
+
12V
GND
VIBE232/242
ONLY
-
TO BATTERY
SPEAKER IMPEDANCE
4-8 OHM
+
TO REMOTE OUTPUT
FROM HEAD UNIT
+
—
8
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S Y S T E M W I R I N G
VIBE232/242/252/262/292
2 CHANNEL TRI-MODE CONFIGURATION
Bass
High
Pass
Low
Remote
Level
High Mode
Boost
Pass
PWR
R
PROT
On
Off
Low
Full
High
Min
40Hz 350Hz
Max
40Hz 3kHz
FRONT
L
Line
Out
Le
t
LEVEL
to REMOTE SUBWOOFER
LEVEL CONTROL
MIN
MAX
TO OUTPUT FROM HEAD UNIT
POWER
SPEAKERS
REAR
-
-
+
+
LEFT
RIGHT
FUSES
BRIDGED MODE
REM
+
12V
GND
VIBE232/242
ONLY
-
+
SPEAKER IMPEDANCE 4-8 OHM
TO BATTERY
+
LEFT
SPEAKER
TO REMOTE OUTPUT
FROM HEAD UNIT
RIGHT
SPEAKER
+
-
+
SUBWOOFER
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9
S Y S T E M W I R I N G
TRIAMP SYSTEM USING THREE 2 CHANNEL AMPLIFIERS
MASTER AMP FRONT (WOOFERS)
VIBE232/242/252/262/292
MASTER AMP RAER
Bass
High
Pass
Low
Remote
POWER
SPEAKERS
Level
Mode
Boost
Pass
PWR
PROT
On
Off
Full
Low
High
Min
40Hz 350Hz
Max
40Hz 3kHz
+
-
+
RIGHT
-
LEFT
FUSES
BRIDGED MODE
Line
Out
ne
REM
+
12V
GND
t
VIBE232/242
ONLY
-
+
LEVEL
WOOFERS
TO BATTERY
TO REMOTE OUTPUT
FROM HEAD UNIT
switch in
Low Pass Position
+
TO OUTRUT
FROM HEAD UNIT
MIN
MAX
Low
+
R
Full
High
L
to REMOTE SUBWOOFER
LEVEL CONTROL
SPEAKER IMPEDANCE
2-4 OHM
SLAVE AMP #1 REAR
SLAVE AMP #1 FRONT (MIDS)
Bass
High
Pass
Low
Remote
POWER
SPEAKERS
Level
Mode
Boost
Pass
PWR
PROT
R
L
On
Off
Full
Low
High
Min
40Hz 350Hz
Max
40Hz 3kHz
+
-
+
-
RIGHT
LEFT
BRIDGED MODE
FUSES
Line
Out
Le
REM
+
12V
GND
It
VIBE232/242
ONLY
-
+
LEVEL
TO BATTERY
TO REMOTE OUTPUT
FROM HEAD UNIT
switch in
+
MIDRANGE
MIN
MAX
Full Positiin
Low
+
R
Full
High
Y ADAPTOR
Y ADAPTOR
L
to REMOTE SUBWOOFER
LEVEL CONTROL
SLAVE AMP #2 REAR
SLAVE AMP #2 FRONT (TWEETERS)
Bass
High
Pass
Low
Remote
POWER
SPEAKERS
Level
Mode
Boost
Pass
PWR
PROT
R
L
On
Off
Full
Low
High
Min
40Hz 350Hz
Max
40Hz 3kHz
+
-
+
RIGHT
-
LEFT
FUSES
BRIDGED MODE
Line
Out
ne
REM
+
12V
GND
t
VIBE232/242
ONLY
-
+
TO BATTERY
Switch in
Low Pass Position
+
TWEETERS
LEVEL
Low
+
R
Full
TO REMOTE OUTPUT
FROM HEAD UNIT
High
L
MIN
MAX
to REMOTE SUBWOOFER
LEVEL CONTROL
—
1
0
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S Y S T E M W I R I N G
VIBE412/422/432
4 CHANNEL STEREO CONFIGURATION
Remote
High
Pass
High
Pass
PWR
CH4
PROT
CH2
CH1
40Hz 3kHz 40Hz 3kHz
Bass
Level
FRONT
Bass
Level
Low pass Low pass
Mode
Mode
Boost
Boost
Full
Off
On
Full
Off
Min
40Hz
Min
Max
Max
40Hz 350Hz
350Hz
High
pass
Low
Low
On
Line
out
Le
L
Line
Out
CH3
passHigh
pass
It
pass
It
Y ADAPTOR
Y ADAPTOR
LEVEL
TO OUTPUT FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
MIN
MAX
REAR
-
-
-
-
+
+
CH2
+
+
CH3
CH4
CH1
REM
12V
GND
BRIDGED MODE
BRIDGED MODE
FUSES
-
TO BATTERY
+
+
+
SPEAKER IMPEDANCE 2-4 OHM
TO REMOTE OUTPUT
FROM HEAD UNIT
CH4
-
-
CH1
+
+
CH3
CH2
-
SPEAKER IMPEDANCE 2-4 OHM
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S Y S T E M W I R I N G
VIBE412/422/432
4 CHANNEL BRIDGED MODE CONFIGURATION
Remote
High
Pass
High
Pass
PWR
CH2
CH4
40Hz 3kHz 40Hz 3kHz
Low pass Low pass
Bass
Level
FRONT
Bass
Level
Mode
Mode
Boost
Boost
Full
passHigh
Off
On
Full
Low
pass
Off
Min
40Hz
Min
Max
Max
40Hz 350Hz
350Hz
High
pass
Low
On
Line
out
Le
L
Line
Out
CH1
CH3
It
pass
It
To RIGHT OUTPUT
FROM HEAD UNIT
Y
ADAPTOR
LEVEL
TO LEFT OUTRUT
FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
MIN
MAX
REAR
-
-
-
-
+
+
CH2
+
+
CH3
CH4
CH1
REM
12V
GND
BRIDGED MODE
BRIDGED MODE
FUSES
TO BATTERY
+
TO REMOTE OUTPUT
FROM HEAD UNIT
+
-
R
L
-
SPEAKER IMPEDANCE 4-8 OHM
+
—
1
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S Y S T E M W I R I N G
VIBE412/422/432
4 CHANNEL TRI-MODE CONFIGURATION
Remote
High
Pass
High
Pass
PWR
CH4
PROT
CH2
CH1
40Hz 3kHz 40Hz 3kHz
Bass
Level
FRONT
Bass
Level
Low pass Low pass
Mode
Mode
Boost
Boost
Full
Off
On
Full
Off
Min
40Hz
Min
Max
Max
40Hz 350Hz
350Hz
High
pass
Low
Low
On
Line
out
Le
L
Line
Out
CH3
passHigh
pass
It
pass
It
Y ADAPTOR
Y ADAPTOR
LEVEL
TO OUTPUT FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
MIN
MAX
REAR
-
-
-
-
+
+
CH2
+
+
CH3
CH4
CH1
REM
12V
GND
BRIDGED MODE
BRIDGED MODE
FUSES
-
+
TO BATTERY
+
+
-
CH4
SPEAKER IMPEDANCE
4-8 OHM
+
CH1
TO REMOTE OUTPUT
FROM HEAD UNIT
-
-
+
-
+
-
+
CH2
CH3
LEFT
RIGHT
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1
3
S Y S T E M W I R I N G
VIBE532
Input Mode Swith in
Ch 4 position
5 CHANNEL STEREO CONFIGURATION
CHANNEL 1+2
High
CHANNEL 3+4
Level
CHANNEL 5+6
Low
Bass
High
Pass
Ch4
Ch6
Level
CH4
Mode Level
Mode
Mode
Boost
Pass
Pass
CH2
CH1
CH6
CH5
Full
Max
On
Low
500Hz
Full
Ful
Band
pass
Pass
Off
Min
40Hz
Min
40Hz
Min
Max
Max
4kHz
4kHz
40Hz
High
pass
High
pass
FRONT
Input Mode
PROT
PWR
Ch4
Ch6
40Hz 500Hz
40HHz i4gkhHz
Low
Rete
Low ut
LInput
Low put
Band
CH3
Pass
Pass
Pass
Y ADAPTOR
LEVEL
Y ADAPTOR
TO OUTPUT FROM HEAD UNIT
MIN
MAX
TO LEFT OUTPUT FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
REAR
-
-
-
-
-
+
CH1
+
CH2
+
+
+
CH3
CH4
REM
CH5
BRIDGED MODE
BRIDGED MODE
30AX2 FUSES
+
-
BLACK
+
TO BATTERY
TO REMOTE OUTPUT
FROM HEAD UNIT
RED
-
CH5
CH4 +
-
CH1
-
+
-
CH2
+
CH3
SPEAKER IMPEDANCE 2-4 OHM
—
1
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S Y S T E M W I R I N G
VIBE532
5 CHANNEL BRIDGED MODE CONFIGURATION
Input Mode Swith in
Ch 6 position
CHANNEL 1+2
CHANNEL 3+4
Level
CHANNEL 5+6
Low
Bass
High
Pass
High
Pass
Level
CH4
Mode Level
Mode
Mode
Ch4
Boost
Pass
Ch6
CH2
CH1
CH6
CH5
Full
Max
On
Low
500Hz
Full
Full
Band
pass
Pass
Off
Min
40Hz
Min
40Hz
Min
Max
Max
4kHz
4kHz
40Hz
High
pass
High
pass
FRONT
Input Mode
PROT
PWR
Ch4
Ch6
40Hz 500Hz
40HHz i4gkhHz
Low
Rete
Low ut
LInput
Low put
Band
CH3
Pass
Pass
Pass
Y ADAPTOR
RIGHT INPUT
Y ADAPTOR
LEFT INPUT
LEVEL
Y ADAPTOR
MIN
MAX
TO OUTPUT FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
REAR
-
-
-
-
-
+
CH1
+
CH2
+
+
+
CH3
CH4
REM
CH5
BRIDGED MODE
BRIDGED MODE
FUSES
-
BLACK
TO BATTERY
RED
TO REMOTE OUTPUT
FROM HEAD UNIT
+
WOOFER
-
+
L
R
-
+
SPEAKER IMPEDANCE 4-8 OHM
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S Y S T E M W I R I N G
VIBE532
5 CHANNEL TRI-MODE CONFIGURATION
CHANNEL 1+2
CHANNEL 3+4
Level
CHANNEL 5+6
Low
Bass
High
Pass
High
Pass
Level
CH4
Mode Level
Mode
Mode
Boost
Pass
CH2
CH1
CH6
CH5
Full
Max
On
Low
500Hz
Full
Ful
Band
pass
Pass
Off
Min
40Hz
Min
40Hz
Min
Max
Max
4kHz
4kHz
40Hz
High
pass
High
pass
FRONT
Input Mode
PROT
PWR
Ch4
Ch6
40Hz 500Hz
40HHz i4gkhHz
Low
Rete
Low ut
LInput
Low put
Band
CH3
Pass
Pass
Pass
LEVEL
Y ADAPTOR
TO OUTPUT FROM HEAD UNIT
Y ADAPTOR
MIN
MAX
TO OUTPUT FROM HEAD UNIT
to REMOTE SUBWOOFER
LEVEL CONTROL
REAR
-
-
-
-
-
+
CH1
+
CH2
+
+
+
CH3
CH4
REM
CH5
BRIDGED MODE
BRIDGED MODE
30AX2 FUSES
-
+
BLACK
+
TO BATTERY
TO REMOTE OUTPUT
FROM HEAD UNIT
RED
+
-
-
CH1
CH4
CH5
+
-
-
-
-
CH3 +
CH2
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6
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RIGHT
T R O U B L E S H O O T I N G
AMPLIFIER WILL NOT POWER UP.
Check for good ground connection.
Check that remote DC terminal has at least 3v DC.
Check that there is battery power on the + terminal.
Check all fuses.
Check that Protection LED is not lit. If it is lit, shut off amplifier briefly and then repower it.
HIGH HISS OR ENGINE NOISE (ALTERNATOR WHINE) IN SPEAKERS.
Disconnect all RCA inputs to the amplifier(s) - if hiss/noise disappears, then plug in the component
driving the amplifier and unplug its inputs. If hiss/noise disappears, go on until the faulty/noisy
component is found.
It is best to set the amplifier’s input level as low as possible.The best subjective S/N ratio
is obtainle this way.Try drive as signal level from the head unit as possibe.
PROTECTION LED COMES ON WHEN THE AMPLIFIER IS POWERED UP.
Check for shorts on speaker leads.
Check that the volume control on the head unit is turned down low.
Remove speaker leads,and reset the amplifier. If the Protection LED still comes
on, then the amplifier is faulty.
AMPLIFIER(S) GETS VERY HOT.
Check that the minimum speaker impedance for that model is correct.
Check for speaker shorts.
Check that there is good airflow around the amplifier. In some
applications, an external cooling fan may be required.
DISTORTED SOUND
Check that the Level control(s) is set to match the signal level of the
head unit.
Check that all crossover frequencies have been properly set.
Check for shorts on the speaker leads.
HIGH SQUEAL NOISE FROM SPEAKERS.
This is almost always caused by a poorly-grounded RCA patch cord.
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