EN
EN
JBL DSP Amplifier DSP4086 
4
REMOTE
INPUT
LEVEL
LO HI HI2 REM DC AUDIO
TURN-ON
MODE
PC
SPEAKER OUTPUT CHANNELS POWER
REM OUT GND
GND
GND
12 V
12 V
12 V
REM IN
PRT
PWR
AUDIO
INPUT
8+1+ 2+ 3+ 4+ 5+ 6+ 7+
8-1- 2- 3-
4- 5-
6- 7-
SETTING THE SOUND 
Download the tuning software from JBL.com
1.  Connect to internet with your Windows PC or laptop and go 
to JBL.com and download the Graphic User Interface for the 
DSP4086 Amplifier.
2.  Complete the software installation setup wizard before you 
connect your computer to your JBL DSP Amplifier.
3.  Double-click “JBL DSP software” from its saved location.
4.  Double-click “USB driver” and click install
NOTE: Make sure to allow it to make changes to your computer if 
your anti-virus software requests it.
5. Double-click “setup.exe”.
NOTE: Make sure to allow it to make changes to your computer if 
your anti-virus software requests it.
 
 
6.  Click “Next” in the JBL DSP Software Setup Wizard.
7.  Select preferred installation folder, or click “next” to choose 
the default location.
8.  Click “Next” to confirm installation. Again, make sure that your 
anti-virus protection allows installation to be completed.
9.  Sit back and wait while software installation completes…
10.  Installation Complete! Close setup wizard and continue to 
next section. You should see this icon on your computer 
screen (please note to icon is JBL orange).