RP-350.1D
RP-800.1D
RP-1500.1D
RP-2000.1D
RP-3500.1D
RP-4500.1D
RP-75.4AB
RP-150.4AB
RP-600.5
INTRODUCTION
Congratulations and thank you for purchasing Skar Audio amplifiers, the logical choice in
mobile audio amplification. Your amplifiers have been designed and engineered with
the highest quality components and top of the line workmanship to help you reach
the superior sound you are after.
To achieve optimal performance of your system, please take a few moments to read over this
Owner’s manual or visit authorized dealer if needed before starting your installation.
DIGITAL MONOBLOCK FEATURES
STABLE INTO 1 OHM LOAD
HIGH SPEED MOSFET POWER SUPPLY
24dB/OCT, VARIABLE CROSSOVER
VARIABLE LOW PASS FILTER
VARIABLE SUBSONIC FILTER
6dB / 12dB SELECTABLE BASS BOOST
REMOTE CONTROL
COMPACT DESIGN
DIGITAL MONOBLOCK SPECIFICATIONS
Rated power output
- RMS power @ 4 ohm
- RMS power @ 2 ohm
- RMS power @ 1 ohm
Working impedance
Input Sensitivity
Low Pass Filter
Subsonic Filter
Bass Boost
Frequency Response
Signal to Noise Ratio
Efficiency @ 4ohm
THD @ 4ohm
Damping Factor
Fuse Rating
Dimensions ( L inches )
6.30 W x 2.20 H inches
RP-350.1D
150Watts x 1
250Watts x 1
350Watts x 1
1 ohm stable
6V ~ 0.2V
50Hz ~ 220Hz
Off ~ 50Hz
6dB / 12dB
20 ~ 250Hz
85 <
Over 90%
< 0.1%
150 <
30A
6.23 inches
RP-800.1D
370Watts x 1
600Watts x 1
800Watts x 1
1 ohm stable
6V ~ 0.2V
50Hz ~ 220Hz
Off ~ 50Hz
6dB / 12dB
20 ~ 250Hz
85 <
Over 90%
< 0.1%
150 <
80A
10.13 inches
RP-1500.1D
550Watts x 1
930Watts x 1
1500Watts x 1
1 ohm stable
6V ~ 0.2V
50Hz ~ 220Hz
Off ~ 50Hz
6dB / 12dB
20 ~ 250Hz
85 <
Over 90%
< 0.1%
150 <
120A
13.267 inches
All features are subject to change in the continuing effort to improve the products without notice.
RP-2000.1D
800Watts x 1
1400Watts x 1
2000Watts x 1
1 ohm stable
6V ~ 0.2V
50Hz ~ 220Hz
Off ~ 50Hz
6dB / 12dB
20 ~ 250Hz
85 <
Over 90%
< 0.1%
150 <
200A
17.71 inches
DIGITAL MONOBLOCK FEATURES
STABLE INTO 1 OHM LOAD
HIGH SPEED MOSFET POWER SUPPLY
24dB/OCT, VARIABLE SUBSONIC FILTER
24dB/OCT, LOW PASS FILTER
VARIABLE BASS EQ
VARIABLE PHASE CONTROL
REMOTE CONTROL
STRAPPED CONNECTION TO 2 OHM
HIGH PURITY AND THICKNESS PRINTED
CIRCUIT BOARDS ( RP-3500.1D : 2oz,
RP-4500.1D : 3oz )
DIGITAL MONOBLOCK SPECIFICATIONS
Rated power output
- RMS power @ 4 ohm
- RMS power @ 2 ohm
- RMS power @ 1 ohm
- RMS Strapped power @ 2 ohm
Working impedance
Input Sensitivity
Low Pass Filter
Subsonic Filter
Bass EQ
Phase Control
Remote Control
Strapped Connection
Frequency Response
Signal to Noise Ratio
Efficiency @ 4ohm
THD @ 4ohm
Damping Factor
Fuse Rating
Strapped Fuse Rating
Dimensions ( L inches )
8.27 W x 2.44 H inches
RP-3500.1D
1200Watts x 1
2300Watts x 1
3500Watts x 1
7000Watts x 1
1 ohm stable
6V ~ 0.2V
35Hz ~ 250Hz
10Hz ~ 50Hz
0dB ~ 9dB
0 ~ 180 Degree
Included
Included
20 ~ 250Hz
85 <
Over 90%
< 0.1%
200 <
350A
700A
18.90 inches
RP-4500.1D
1600Watts x 1
2900Watts x 1
4500Watts x 1
9000Watts x 1
1 ohm stable
6V ~ 0.2V
35Hz ~ 250Hz
10Hz ~ 50Hz
0dB ~ 9dB
0 ~ 180 Degree
Included
Included
20 ~ 250Hz
85 <
Over 90%
< 0.1%
200 <
450A
900A
22.05 inches
All features are subject to change in the continuing effort to improve the products without notice.
MULTI-CHANNEL FEATURES
4 CHANNEL AMPLIFIER
STABLE INTO 2 OHM STEREO OR 4 OHM MONO
HIGH SPEED MOSFET POWER SUPPLY
12dB/OCT, HIGH PASS FILTER
12dB/OCT, LOW PASS FILTER
6dB / 12dB SELECTABLE BASS BOOST
BAND-PASS CAPABLE
SURFACE MOUNT TECHNOLOGY
DOUBLE SIDED PRINTED CIRCUIT BOARD
5 CHANNEL AMPLIFIER
CH1 ~ CH4 STABLE INTO 2 OHM STEREO
CH5 STABLE INTO 1 OHM
12dB/OCT, HIGH PASS FILTER FOR CH1 ~ CH4
24DB/OCT, LOW PASS FILTER FOR CH5
24DB/OCT, SUBSONIC FILTER FOR CH5
VARIABLE BASS BOOST
SURFACE MOUNT TECHNOLOGY
DOUBLE SIDED PRINTED CIRCUIT BOARD
MULTI-CHANNEL SPECIFICATIONS
Rated power output
- RMS power @ 4 ohm
- RMS power @ 2 ohm
- RMS power @ 1 ohm
- RMS power @ 4 ohm mono
Working impedance
Input Sensitivity
High Pass Filter
Low Pass Filter
Subsonic Filter
Bass Boost
Frequency Response
RP-75.4AB
75Watts x 4
115Watts x 4
na
250Watts x 2
2 ohm stable
6V ~ 0.2V
20Hz ~ 5KHz
50Hz ~ 500Hz
na
6dB / 12dB
20Hz ~ 20KHz
RP-150.4AB
150Watts x 4
250Watts x 4
na
500Watts x 2
2 ohm stable
6V ~ 0.2V
20Hz ~ 5KHz
50Hz ~ 500Hz
na
6dB / 12dB
20Hz ~ 20KHz
Signal to Noise Ratio
Efficiency @ 4ohm
105 <
Over 65%
105 <
Over 65%
THD @ 4ohm
Damping Factor
Fuse Rating
Dimensions ( L inches )
6.30 W x 2.20 H inches
< 0.1%
150 <
60A
13.78 inches
< 0.1%
150 <
120A
17.72 inches
RP-600.5
60Watts x 4 + 170Watts x 1
90Watts x 4 + 270Watts x 1
370Watts x 1
180Watts x 2
2 ohm for CH1/4, 1 ohm for CH5
6V ~ 0.2V
20Hz ~ 5KHz - CH1/2 & CH3/4
50Hz ~ 250Hz for CH5
10Hz ~ 50Hz for CH5
0 ~ 12dB for CH5
20Hz ~ 20KHz for CH1/4,
20 ~ 250Hz for CH5
105 < for CH1/4, 85 < for CH5
Over 65% for CH1/4,
Over 90% for CH5
< 0.1%
150 <
80A
16.93 inches
All features are subject to change in the continuing effort to improve the products without notice.
POWER CONNECTION
HEADUNIT
GROUND
BATTERY
Fuse rate
BATT ( 12V POWER )
Before mounting amplifiers, disconnect the negative cable from the battery to protect
any accidental damage to your amplifiers and audio system.
RP-2000.1D, RP-3500.1D & RP-4500.1D are designed to use o ga power and ground connection
Rest of RP amplifiers are designed to use 4 gauge power and ground connection.
Connect the power cables to power terminal 12V.
All RP-series amplifiers are not equipped with fuses so that external fuses should be used.
Connect one end of fuse holder to the power cable going into the amplifiers and the other
end of fuse holder to positive battery. This fuse location will protect the system and
the vehicle against the possibility of a short circuit in the power cable.
Be sure to use fuses and fuse holder adequate for the application.
GND ( GROUND )
Locate a secure grounding connection as close to amplifier as possible.
Make sure the location is clean and provides a direct electrical connection to the frame of
the vehicle. The ground needs to have as low of a resistance as possible.
Connect one end of a short piece of the same size cable as the power cable to
the grounding point or to one of your batteries or battery bank. Run the other end of 4 ga
cable to the mounting location of the amplifiers for connection to the amplifiers ground
terminals and connect the ground cable to the GND ( ground terminal ).
REM ( REMOTE )
Run a remote turn on cable from the switched 12V source . This may be a toggle switch,
a relay, your source unit's remote trigger cables, or power antenna trigger cable.
Connect the remote turn on cable to the REM ( remote ) terminal.
DIGITAL MONOBLOCK INPUT CONNECTION
HEADUNIT
DIGITAL MONOBLOCK SPEAKER CONNECTION
4 ~ 1 ohms
8 ~ 2 ohms
8 ~ 2 ohms
STRAPPABLE CONNECTION
Strappable connection makes two of same amplifiers strapped to 2 ohm.
Strappable connection makes the power double than their 1 ohm power.
Please read the following connection and diagram carefully to make correct connection.
INPUT CONNECTION ;
Step 1. Connect the Master amplifier to the head-unit and set its output master / input slave switch to
output master.
Step 2. Set Slave amplifier output master / input slave switch to slave input.
Step 3. Connect RCA cable from the master to slave amplifier as shown in the diagram.
POWER & SPEAKER CONNECTION ;
Step 1. Connect speaker cable ( ) on master amplifier to subwoofer ( )
Step 2. Connect speaker cable ( ) on slave amplifier to subwoofer ( )
Step 3. Connect speaker cable ( ) on master amplifier to speaker cable ( ) on slave amplifier
Set switch on OUTPUT MASTER
+12V SOURCE
MASTER AMPLIFIER
Wired Remote Control
Fully adjusted signal is transferred from master to slave amp via Rca cable.
Master amplifier controls all crossover and remote control over Slave amplifier
SLAVE AMPLIFIER
Set switch on INPUT SLAVE
+12V SOURCE
Remote turn on
MASTER AMPLIFIER
Ground
8 ~ 2 ohms
Remote turn on
BATTERY
SLAVE AMPLIFIER
2 ohm
4 CHANNELS RCA INPUT CONNECTION
HEADUNIT
Input
Ch3
Ch1
Ch1/2
GAIN
Min
HPF
LPF
X-Over
Max 20Hz 5KHz 50Hz 500Hz
HPF
LP/BP
Full
Bass EQ Power
0dB
12dB
6dB
Protect
Remote
Ch4
Ch2
Min
Max 20Hz 5KHz 50Hz 500Hz HPF
LP/BP
Full
Ch3/4
0dB
12dB
6dB
4 CHANNELS SPEAKER CONNECTIONS
Mid Range
Tweeter
POWER
Passive
Ch1
Ch3
Bridged
Bridged
Ch2
Ch4
Mid Range
Tweeter
POWER
Passive
Ch1
Ch3
Bridged
Bridged
Ch2
Ch4
8 ~ 4 ohms
5 CHANNEL RCA INPUT CONNECTION
HEADUNIT
5 CHANNEL SPEAKER CONNECTIONS
4 ~ 1 ohms
8 ~ 4 ohms
8 ~ 4 ohms
Mid Range
Tweeter
4 ~ 1 ohms
Passive
TROUBLE SHOOTINGS
RP-series amplifiers have protection features to prevent any damages from misuse or
faulty conditions.
If RP-series amplifiers sense excessive heat, short circuited speakers DC, or voltage
the protection indicator will light, and the system will be turned off.
In order to check the problem, you should turn all levels down and all power off and carefully
check the installation for wiring mistakes or short.
If RP-series amplifiers shuts down due to excessive heat, They will be working later
when it is cooled down
Before removing your amplifier, refer to the list below and follow the suggested procedures.
NO SOUND ( NO OUTPUT )
@ Please check all connections, cables' routing, short & volta ge.
@ Please check the fuses , If they are blown, please replace with new one..
@ Please check whether speakers work well, you can test speakers by connecting to
another amplifier
PROTECTION
@ Please check overload, overheat ( thermal ), short and voltage, DC offset.
@ Minimum working impedance is 1 ohm for RP-350.1D, RP-800.1D, RP-1500.1D, RP-2000.1D, RP-3500.1D
and RP-4500.1D. RP-75.4AB and RP-150.4AB is 2 ohm stereo or 4 ohm mono.
RP-600.5 is 2 ohm stereo or 4 ohm mono for CH1 ~ CH4 and 1 ohm for CH5.
@ If amplifiers are shut down due to heat, they will be on some minutes later after cooling down.
Please make better airflow and no obstruction around amplifiers for thermal protection.
@ RP-350.1D, RP-800.1D, RP-1500.1D, RP-2000.1D, RP-3500.1D, RP-4500.1D RP-75.4AB, RP-150.4AB &
RP-600.5’s working voltage is 8.5 ~ 16Volts.
@ When over 4V DC comes into amplifiers, then, they will be DC protected. Check whether amplifiers
work after removing RCA-Input.
If amplifiers work, then check DC by checking RCA-input .
When DC is over 4V at input, try by replacing +12V source unit .
DISTORTION & NOISE
@ Readjust input level and check the speaker quality at another amplifier.
Replace poor quality speakers with good quality ones.
@ Check amplifiers and headunit’s ground contact. all grounds should be common.
@ Check Rca Jack, then repalce with new one or reroute Rca Jack.
@ Engine noise is caused by poor grounding of amplifiers, headunit, other components, battery or
alternator, so please check all grounding connection.
POOR BASS RESPONSE
@ Please check speaker cables and reverse polarity.
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