SKAR Audio SKv2-1500.1D User manual

Owner’s Manual
SOUND QUALITY AMPLIFIER
SKv2-1500.1D
SKv2-2500.1D
SKv2-3500.1D
SKv2-4500.1D
SKv2-1300.2AB
SKv2-100.4AB
SKv2-200.4D

1. 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.
2. DESIGN FEATURES
3. SPECIFICATIONS
3-1. Digital monoblock specifications
FEATURES
Power @ 4ohm
Power @ 2ohm
Power @ 1ohm
Strappable Power
Power @ 4ohm
Power @ 2ohm
Frequency Response
Signal to Noise Ratio
Damping Factor
Input Sensitivity
Low Pass Filter
Subsonic Filter
Bass Boost ( @ 45Hz )
Phase Shift ( Degree )
Master / Slave connection
Remote Gain Control
Power & Ground terminals.
Working Voltage
External Fuse ( Single Unit )
External Fuse ( Strappable )
All features are subject to change in the continuing effort to improve the products without notice.
SKv2-1500.1D
500W x 1
930W x 1
1700W x 1
1860W x 1
3400W x 1
15~270Hz
95dB
200 <
6V~0.2V
35~250Hz
10~50Hz
0~9dB
0~180
to 2ohm
Included
0 Ga
8.5V~16V
160A
320A
SKv2-2500.1D
790W x 1
1450W x 1
2500W x 1
2900W x 1
5000W x 1
15~270Hz
95dB
200 <
6V~0.2V
35~250Hz
10~50Hz
0~9dB
0~180
to 2ohm
Included
0 Ga
8.5V~16V
250A
500A
SKv2-4500.1D
1500W x 1
2800W x 1
4900W x 1
5600W x 1
9800W x 1
15~270Hz
95dB
200 <
6V~0.2V
35~250Hz
10~50Hz
0~9dB
0~180
to 2ohm
Included
0 Gax2pcs
8.5V~18V
450A
900A
SKv2-3500.1D
1200W x 1
2050W x 1
3500W x 1
4100W x 1
7000W x 1
15~270Hz
95dB
200 <
6V~0.2V
35~250Hz
10~50Hz
0~9dB
0~180
to 2ohm
Included
0 Ga
8.5V~16V
350A
700A
Strappable, high power and efficient digital monoblock amplifiers
@ Stable into 1ohm load for monoblock and
Skv2-1300.2AB
@ Stable into 2ohm stereo for Skv2-100.4AB
Skv2-200.4D
@ Full range digital circuit for SKv2-200.4D
@ High speed mosfet power supply
@ 24dB/Oct, Variable Crossover for Digital
monoblock amplifiers
@ Variable bass boost
@ 180 degree variable phase control
@ Remote control with clipping LED included
@ 4 way protection circuit
( Thermal, High & Low voltage, Speaker short & DC )
@ High Purity copper printed boards
@ 4 & 0 gauge power & ground terminals
@ Hand-made high grade power supply

3-2. Multi-channels specification
FEATURES
Power @ 4ohm
Power @ 2ohm
Power @ 1ohm
Power @ 4ohm mono
power @ 2ohm mono
Frequency Response
Signal to Noise Ratio
Damping Factor
Input Sensitivity
Subsonic Filter
High Pass Filter
High Pass Multiply ( x10 )
Low Pass Filter
Low Pass Multiply ( x10 )
Crossover Selector
Bass Boost ( @ 45Hz )
Remote Gain Control
Power & Ground terminals.
Working Voltage
Fuse Rate
All features are subject to change in the continuing effort to improve the products without notice.
SKv2-1300.2AB
330W x 2
530W x 2
700W x 2
1060W x 1
1400W x 1
10Hz~40KHz
105dB
200 <
6V~0.2V
na
20Hz~5KHz
na
50Hz~5KHz
na
ON / OFF
na
Included
0Ga
~ 14.4V
200A
4. CONTROLS & CONNECTIONS
4-1. Digital monoblock control
RCA JACK INPUT
Low Level Rca Input will accept the signal from the output of
head units. Plug in Rca jack cables from the head unit.
RCA JACK OUTPUT
The preamp output is a full range signal mixed from both input
channels. Use this signal to feed a secondary full range
amplifier in the system.
POWER & PROTECTION LED
Power LED, Green-lit shows correct operation.
Protect LED, RED-lits shows general malfunction, faulty
connection and thermal protection.
GAIN CONTROL ( 6V ~ 0.2V )
The gain control adjusts the gain level. so that this is used to
match the signal level of different headunits.
SUBSONIC FILTER ( 10Hz ~ 50Hz @ 24dB / Oct slope )
Control the high Pass point for the speaker outputs
to eliminate extreme low frequencies.
BASS BOOST ( 0 ~ 9dB @ 45Hz )
It adjusts for up to 9dB of additional gain at that frequency.
REMOTE CONTROL PORT
When using the remote control in a multi amp system
the remote of the master amp will control all amps in the system.
Remote control can be mounted around driver’s seat for easy
access.
LOW PASS FILTER ( 35Hz ~ 250Hz @ 24dB / Oct slope )
The crossover features a steep 24dB oct slope
Linkwitz-Riley low pass crossover ensuring that only
the lowest frequencies are reproduced by the amplifier.
PHASE SHIFT ( 0 ~ 180 degrees )
The adjustable Phase control will help fine tune your
bass system to time align with your midrange and high
frequency speakers.
OUTPUT MASTER / INPUT SLAVE CONNECTION
Output Master / Input Slave connection makes chain
connection to minimum impedance 2 ohm.
SKv2-100.4AB
110W x 4
165W x 4
na
340W x 2
na
10Hz~40KHz
105dB
200 <
6V~0.2V
10Hz~500Hz
50Hz~500Hz
500Hz~5KHz
50Hz~500Hz
500Hz~5KHz
HPF/FULL/LPF
na
Included
4Ga
~ 14.4V
30A x 3
SKv2-200.4D
200W x 4
320W x 4
na
640W x 2
na
10Hz~40KHz
85dB
200 <
6V~0.2V
10Hz~500Hz
50Hz~500Hz
500Hz~5KHz
50Hz~500Hz
500Hz~5KHz
HPF/FULL/LPF
na
Included
4Ga
~ 14.4V
40A x 2

RCA JACK INPUT
Low Level Rca Input will accept the signal from the output of
head units. Plug in Rca jack cables from the head unit.
RCA JACK OUTPUT
The preamp output is a full range signal mixed from both input
channels. Use this signal to feed a secondary full range
amplifier in the system.
GAIN CONTROL ( 6V ~ 0.2V )
The gain control adjusts the gain level. so that this is used to
match the signal level of different headunits.
HIGH PASS FILTER ( 20Hz ~ 5KHz @ 12dB / Oct slope )
The crossover features a steep 12dB oct slope
Linkwitz-Riley high pass crossover ensuring that only
the highest frequencies are reproduced by the amplifier.
X-OVER SLECTOR SWITCH ( ON / OFF )
Selected x-over is in effective.
LOW PASS FILTER ( 50Hz ~ 5KHz @ 12dB / Oct slope )
The crossover features a steep 12dB oct slope
Linkwitz-Riley low pass crossover ensuring that only
the lowest frequencies are reproduced by the amplifier.
REMOTE CONTROL PORT
Plug remote controller to this port for remote gain control
Remote control can be mounted around driver’s seat for easy
access.
POWER & PROTECTION LED
Power LED, Green-lit shows correct operation.
Protect LED, RED-lits shows general malfunction, faulty
connection and thermal protection.
RCA JACK INPUT
Low Level Rca Input will accept the signal from the output of
head units. Plug in Rca jack cables from the head unit.
RCA JACK OUTPUT
The preamp output is a full range signal mixed from both input
channels. Use this signal to feed a secondary full range
amplifier in the system.
GAIN CONTROL ( 6V ~ 0.2V )
The gain control adjusts the gain level. so that this is used to
match the signal level of different headunits.
SUBSONIC FILTER ( 10Hz ~ 500Hz @ 12dB / Oct slope )
Control the high pass point for the speaker outputs
to eliminate extreme low frequencies.
HIGH PASS FILTER ( 50Hz ~ 500Hz @ 12dB / Oct slope )
The crossover features a steep 12dB oct slope
Linkwitz-Riley high pass crossover ensuring that only
the highest frequencies are reproduced by the amplifier.
MULTIPLY ( X1, X 10 )
This x10 makes crossover range from 500Hz
to 5KHz.
X-OVER SLECTOR SWITCH ( HPF/FULL/LP )
Selected x-over is in effective.
LOW PASS FILTER ( 50Hz ~ 500Hz @ 12dB / Oct slope )
The crossover features a steep 12dB oct slope
Linkwitz-Riley low pass crossover ensuring that only
the lowest frequencies are reproduced by the amplifier.
REMOTE CONTROL PORT
Plug remote controller to this port for remote gain control
Remote control can be mounted around driver’s seat for easy
access.
POWER & PROTECTION LED
Power LED, Green-lit shows correct operation.
Protect LED, RED-lits shows general malfunction, faulty
connection and thermal protection.
4-2. 2channel control
4-3. 4channel control

Remote Turn on
+12V SOURCE
BATTERY
Fuse
4-4. Power, remote & ground connection
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 the 0 or 4 gauge 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.
12V ( POWER CONNECTION )
Before mounting amplifiers, disconnect the negative ( ) cable from the battery to protect any accidential damage
to your awesome amplifiers and audio system.
All amplifiers are designed to use 4 or 0 gauge power and ground connection.
Connect the power cables to power terminal + 12V.
SKv2-100.4AB and SKv2-200.4D have built-in fuses but The other 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.
SPEAKER OUTPUT
This terminal connects the amplifiers to the speaker systems. Minimum speaker cable should be larger than
12 gauge.
Connect carefully the subwoofer speakers by checking the impedance 1ohm or 2ohm for link connection to
SKv2-1500.1D, SKv2-2500.1D, SKv2-3500.1D & SKv2-4500.1D.
Skv2-1300.2AB as 1ohm stereo or 2ohm mono stable.
SKv2-100.4AB and SKv2-200.4D as 2ohm stereo or 4ohm mono stable.
Working Voltage
Skv2-1500.1D : 8.5V~16Votls
Skv2-2500.1D : 8.5V~16Votls
Skv2-3500.1D : 8.5V~18Votls
Skv2-4500.1D : 8.5V~18Votls
SKv2-1300.2AB : 14.4Volts
SKv2-100.4AB : 14.4Volts
SKv2-200.4D : 14.4Volts

Digital monoblock speaker connection 1.
Digital monoblock speaker connection 2
4-5. Seaker connection
4~ 2 ohms 4~ 2 ohms
4~ 1 ohms
Skv2-1500.1D, Skv2-2500.1D, SKv2-3500.1D and SKv2-4500.1D Minimum working impedance
is 1ohm as single unit. Impedance lower than 1ohm can damage the amplifiers
Caution !!

SKv2-1300AB speaker connection 1.
SKv2-1300AB speaker connection 2.
4~ 2 ohms
4~ 1 ohms
4~ 1 ohms
4~ 1 ohms
4~ 1 ohms
SKv2-1300.2 Minimum working impedance is 1ohm stereo
or 2ohm mono.
Caution !!

4channel speaker connection 1.
4channel speaker connection 12.
8 ~ 4 ohms
SKv2-100.4AB & SKv2-200.4D Minimum working impedance is 2ohm STEREO or 4ohm mono.
Caution !!

5. Strappable connection
Strappable connection makes two of same amplifiers linked to 2ohm.
Strappable connection makes the power double than their’s each 1ohm 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
+12V SOURCE
Fully adjusted signal is transferred from master to slave amp via Rca cable.
Master amplifier controls all crossover and remote control over Slave amplifier
MASTER AMPLIFIER
SLAVE AMPLIFIER
Wired Remote Control
Set switch on OUTPUT MASTER
Set switch on INPUT SLAVE

MASTER AMPLIFIER
SLAVE AMPLIFIER
+12V SOURCE
Remote turn on
Remote turn on
BATTERY
8 ~ 2 ohms
Ground
BATTERY
Ground

6. Trouble shooting
NO SOUND ( NO OUTPUT )
@ Please check all connections, cables' rounting, short & voltage
@ 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 SKv2-1500.1D, SKv2-2500.1D, SKv2-3500.1D &
SKv2-4500.1D as single unit and 2 ohm stable for strappable connection.
Skv2-1300.2AB is 1ohm stereo or 2ohm mono.
SKv2-100.4AB & SKv2-200.4D is 2ohm stereo or 4ohm mono.
@ 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.
@ SKv2-1500.1D & SKv2-2500.1D’s working voltage is 8.5 ~ 16Volts.
SKv2-3500.1D & SKv2-4500.1D’s working voltage is 8.5 ~ 18Volts
Skv2-1300.2AB, SKv2-100.4AB & SKv2-200.4D are working to 14.4Volts
@ 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.