Down4Sound JP33 User manual

JP33
JP43
JP63
JP83
OWNER’S MANUAL

Rated Power Output
RMS power, 1ohm
RMS power, 2ohms
RMS power, 4ohms
RMS power, 2ohm Linked
Frequency Response
Low Pass Filter
Subsonic Filter
Phase
Input sensitivity
signal to Noise Ratio
T.H.D @ 4ohm
Working voltage
Single unit fuse rating
Strapped fuse rating
Length (inches)
Width x height (inches)
STRAPPABLE DIGITAL MONOBLOCK AMPLIFIER
STABLE INTO 1OHM MONO LOAD
HIGH SPEED MOSFET POWER SUPPLY
VARIABLE LOW PASS FILTER
VARIABLE SUBSONIC FILTER
VARIABLE BASS BOOST
4 WAY PROTECTION CIRCUITS
( THERMAL, HIGH & LOW VOLTAGE, SPEAKER
SHORT AND DC )
BLUETOOTH REMOTE CONTROL ( REMOTE BASS KNOB
WITH VOLTMETER, AMPLIFIER TEMPERATURE AND
CLIPPING INDICATOR )
HIGH PURITY COPPER PRINTED CIRCUIT BOARD
0 GAUGE POWER / GROUND TERMINALS.
All features are subject to change in the continuing effort to improve the products without notice.
JP33
3300W x 1
2300W x 1
1200W x 1
7000W x 1
14Hz - 260Hz
35Hz - 250Hz
10Hz - 50Hz
0º - 180º
6V - 0.2V
96dB <
less than 0.1%
9V - 16V
350A
700A
13.78
9.37 x 2.64
JP43
4300W x 1
2300W x 1
1300W x 1
9000W x 1
14Hz - 260Hz
35Hz - 250Hz
10Hz - 50Hz
0º - 180º
6V - 0.2V
89dB <
less than 0.1%
9V - 16V
400A
8400A
15.75
9.37 x 2.64
JP63
6300W x 1
4300W x 1
2300W x 1
13500W x 1
14Hz - 269Hz
35Hz - 250Hz
10Hz - 50Hz
0º - 180º
6V - 0.2V
91dB <
less than 0.1%
9V - 16V
700A
1400A
19.68
9.37 x 2.64
JP83
8300W x 1
6300W x 1
3300W x 1
20000W x 1
14Hz - 271Hz
35Hz - 250Hz
10Hz - 50Hz
0º - 180º
6V - 0.2V
92dB <
less than 0.1%
9V - 16V
900A
1800A
23.62
9.37 x 2.64
THESE AMPLIFIER AWESOMENESS WAS
BROUGHT TO YOU BY, JP , JACOB SCOTT,
SHANE EKSTROM & TEAM DOWN4SOUND.

GROUND
+12V POWER
Connect the +12V terminal of the amplifier to the positive terminal of the baery using the same diameter
as the ground cable, making sure you install in-line fuse holder, approximately 11 inches to 16 inches
( 300 mm to 400 mm ) from the positive terminal of baery, making sure that there is no fuse in the holder
GROUND ( GND )
Disconnect the baery and connect the GND (ground) terminal to the car’s chassis.
Keep this cable as short as possible (not longer than 20 inches ).
Making sure that the connection with the chassis is rust free and clear of paint or grime.
With high power amplifiers, It is best to connect ground to negative ( ) baery terminal.
REMOTE ( REM )
Connect the REM terminal of the amplifier to the power antenna terminal or the dedicated remote
turn on using 12 or 16 ga. electrical wire.
Caution
HEAD UNIT
BATTERY
THE JP33, JP43, JP63 & JP83 are not supplied with internal fuses.
Make sure you install an in-line fuse holder
from the POSITIVE terminal of baery.
The JP33 & JP43 have 2 (two) Power & Ground inputs
The JP63 & JP83 have 3 (three) Power & Ground inputs
Attach the correct cables and wires accordingly.

SPEAKER CONNECTION 1.
SPEAKER CONNECTION 2.
4~1 OHMS
4~2 OHMS
4~2 OHMS
Caution
ALL SPEAKER CONNECTION & AMPLIFIER ADJUSTMENTS
ARE THE SAME FOR THE JP 33, 43, 63, & 83

1. SINGLE INPUT CONNECTION
2. STRAPPABLE POWER ( REM ) CONNECTION
MASTER AMPLIFIER
SLAVE AMPLIFIER
Bluetooth remote control
HEAD UNIT
SLAVE REM should be connected from MASTER REM
for Bluetooth bass knob remote turn on / off feature

Using a strappable configuration, the MASTER amplifier has total control over the SLAVE amplifier.
When using dual amplifier to operate subwoofer, the positive terminal of the subwoofer's voice coil
must be connected to the positive terminal of the MASTER Amplifier and the negative terminal
of the subwoofer's voice coil must be connected to positive terminal of the SLAVE Amplifier.
When hooking two amplifiers to it, please check the power handling capabilities of your subwoofers
they are not exceeded.
4~2 OHMS
SLAVE AMPLIFIER
Caution
3. STRAPPABLE INPUT & SPEAKER CONNECTION
MASTER AMPLIFIER

Bluetooth Remote control working manual.
1. Power on : Pushing #5 potentiometer then, display dIS ( DISCONNECTION )
dIS is displayed before pairing or disconnecting the pairing.
2. Pairing
Pushing #2 for 2 ~ 3 seconds for pairing. Then, display SCN then, display volt as below
Aer 10seconds of displaying volt then, go into sleep mode. Once touch #2 or #5 , then live again
[ SLEEP MODE is default -10 seconds display ]
PAIR LED ( Green ) is lit when it is paired. When If is off, try pair again.
3. ALL mode ( displaying LED is always on )
Pushing #5 for 3 seconds, then changed from Sleep mode to All mode by displaying ALL then, to display Volt.
When pushing #2 switch then, display change from Volt, ℉and℃.
When turning #5, then display value of level for 10 seconds, then change to volt.
at All mode, Display is always on .
ALL mode consumes baery lot so when you use ALL mode, beer use C type connector
for power supply from car or check power status from portable power bank.
4. SLEEP mode ( Displaying 10 seconds then go into sleep mode )
At All mode, Pushing #5 for 3 seconds, then changed All mode to Sleep mode
When pushing #5, display SLP then, display volt then, sleep mode in 10 seconds.
5. Fahrenheit / Celsius display
On the display of voltage, push #2 one time, then display Fahrenheit for 10 seconds then, to sleep mode
On the display of voltage, push #2 twice , then display Celsius for 10 seconds then, to sleep mode
6. dIS ( Disconnection ) & Err ( Error ) display
On the display of dIS, try pairing again and move bluetooth remote control close to amplifier
On the display of Err, It is malfunction and try by replaving bluetooth remote control or Bluetooth module
in amplifier
7. link mode ( master /slave connection mode )
Due to Remote turn on / off fuction on BT remote control,
In Link mode, Bluetooth remote control at master amplifier works only. So please do not use Bluetooth remote control
for slave amp
In Link mode, Please connect REM from master amplifier to Slave amlifier for REMOTE turn on / off feature.
so when Bluetooth remote control turns off remote then, master amp and slave amp both are off.
If master and slave amp REM is not connected each, Slave amp is not off even master amp
is REM turned off from BT remote control.
1) Master amp is power connected ( Slave should be disconnected ), then pair with Bluetooth remote.
2) Slave amp is power connected, REM is connected from master amp.
3) BT remote control master amp in link mode.
READ!!!!!
secret code: 1010100010010

The JP33, JP43, JP63 & JP 83 amplifiers have STATE OF THE ART protection features to prevent any damage from
misuse or faulty conditions. If the amplifier senses 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 level down and all power off and carefully check the installation for wiring mistakes or short, check
the subwoofer too. Sometimes spiders rip and they short the coil.
If amplifier shuts down due to excessive heat, it will work once it cools down. Check Bluetooth remote the temp
meter on hot days, and aer extensive us. Before removing your amplifier, refer the list below and follow
the suggested procedures
NO OUTPUT
1. Check remote turn-on voltage at amplifier and headunit, when remote turn-on voltage is low or
no turn-on voltage, amplifiers will remain off.
2. Check fuses at the baery side or external fuses and all wire connections.
3. Check RCA Input is properly connected.
AMPLIFIER SHUT DOWN ( PROTECTION )
1. Please check POWER, GND and REMOTE wire connection and other wires for proper connection.
2. When input voltage greater then 4V DC is present at the amplifiers RCA input, the amp will go into DC protect.
In this case, remove the RCA input cable.
Check whether the amplifier comes out of the protection. if it does, you will need to replace the headunit or
signal processing source.
3. If amplifier overheats, the thermal protection will turn off the amp. Amplifier will be back to work
aer cooling down a lile bit. Please install amplifier with beer ventilation to allow it to cool.
4. JP33, JP43, JP63 and JP83 have minimum working impedance of 1ohm as single unit and 2ohm for strappable
connection.
5. P33, JP43, JP63 and JP83 working voltage is 9V - 16Volts.
6. Make sure Chassis and Remote use same GROUND.
DISTORTION & NOISE
1. Please readjust amplifier input gain level which is printed on endplate.
2. Make sure there is a good ground connection for amplifier and headunit.
3. Use sufficiently shielded RCA interconnects and good RCA routing. Avoid running RCA signal wires
near power cables.
4. Check all ground connections of all other audio equipment.
POOR BASS RESPONSE
1. Check speaker wiring and reverse polarity.