Down4Sound JP23 User manual

OWNER’S MANUAL
READ ME FIRST | OR NOT | BUT STILL, READ ME FIRST
JP23

Rated Power Output
RMS power, 1ohm
RMS power, 2ohms
RMS power, 4ohms
RMS power, 2ohm Linked
Frequency Response
Low Pass Filter
Subsonic Filter
Bass Boost
Input sensitivity
signal to Noise Ratio
T.H.D @ 4ohm
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 )
REMOTE CONTROL ( REMOTE BASS KNOB WITH
VOLTMETER AND AMP TEMPERATURE
DISPLAY. ).
HIGH PURITY COPPER PRINTED CIRCUIT BOARD
0 GAUGE POWER / GROUND TERMINALS.
Don't forget: We sell .5 ohm extended warranties, we won't warranty if you wire you're below 1 ohm.
If your planning to wire low, please stop what you are doing, and purchase a .5 ohm warranty card TO KEEP
YOUR WARRANTY. You have a limited time after purchase; visit Down4SoundShop.com and purchase one
JP-23
2000W x 1 @ 12v | 2300w x 1 @ 14.4v
1000W x 1 @ 12v | 1300w x 1 @ 14.4v
700W x 1
4600W x 1
10Hz - 250Hz
35Hz - 250Hz
10Hz - 50Hz
0 - 9 dB
6V - 0.2V
88dB <
less than 0.1%
200A
400A
17.71
7.32 x 2.19
::: Designed in Dunnellon, FL & Las Vegas NV | USA :::
By. JP, Jacob Scott. Special Thanks to Craig Smith & TEAM D4S.
We added everything we could to this amplifier, we hope you enjoy the JP23.

GROUND
+12V POWER
as the ground cable, making sure you install in-line fuse holder, approximately 11 inches to 16 inches
GROUND ( GND )
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.
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
THE JP-23 is not supplied with internal fuses.
Make sure you install an in-line fuse holder
HEAD UNIT
BATTERY

SPEAKER CONNECTION 1.
SPEAKER CONNECTION 2.
4~1 OHMS
4~2 OHMS
4~2 OHMS

2. STRAPPABLE INPUT CONNECTION
MASTER AMPLIFIER
SLAVE AMPLIFIER
Wired Remote Control
The MASTER amp has total
control over the SLAVE amp.

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
MASTER AMPLIFIER
SLAVE AMPLIFIER
Caution

The JP23 amplifier has 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 Bass Remote the Temp
Meter on hot days, and after extensive use. 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. JP-23 has minimum working impedance of 1ohm as single unit and 2ohm for strappable connection.
5. JP-23 working voltage is 8.5V - 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.

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