JL Audio FiX™ 86

Price $500
If you're looking to enhance your car's sound system by adding new speakers and amplifiers, but replacing the factory radio isn't feasible, consider JL Audio's FiX 86 digital signal processor. Your factory system might use unique EQ curves and preset time alignments that suit the factory speakers well, but could hinder the performance of your aftermarket gear. The FiX 86 DSP eliminates the factory system's equalization, crossover filtering, and time alignment, delivering a clean and precise audio signal. This allows your aftermarket amplifiers and processors to transform the signal into high-fidelity music, ensuring optimal performance from your upgraded components without the need to change out your factory radio.


  • system integration digital sound processor with automatic time alignment, channel summing, and equalization
  • removes factory sound processing for aftermarket speakers and amps
  • 8 speaker-level inputs (ch 1-2: full-range; ch 7-8: subwoofer)
  • 6 preamp outputs (3 pairs RCA) for connection to external processors and amplifiers
  • 24 bit/48 KHz digital audio resolution
  • calibration CD included
  • digital signal processing via Windows PC and JL Audio’s TüN software
    • displays frequency response before and after processing
    • 10-band graphic EQ on front and rear channels
    • control FiX calibration process
    • reverse polarity of any input
    • high-pass filters on front and rear outputs
  • signal-sensing and DC offset sensing turn-on eliminate need for remote lead
  • optional dash-mountable remote (#13698128) controls Master Volume, Handsfree Optimization, and displays system Status LED
  • optional LSA-4 adapter (#13698124) may be necessary in order to defeat a factory radio’s load-sensing mute function
  • dimensions: 4-3/8″W x 1-15/16″H x 6-3/16″D

What Our Customers Are Saying...

Delbert D. Walls Jr.
Nothing but good things to say about this location! I've brought multiple vehicles here, old and new, for different services and Thom has always got me together! Highly recommended!
Mark Waddle
Great service and good price’s. Looks like it was factory installed and sounds great
Drew Rose
Brian and Tom are awesome! The installers here are amazing as well. Don’t forget to tip your installer
Denise Varitek
Very satisfied with the blind side alert system installed on my car. Staff was very professional and knowledgeable.
Wesley Kasperski
They are the best in the business!
Darin Lauer
This was the 7th vehicle I’ve taken to CarTunes in Allen Park for window tint. As with the other six… they did a great job again! Quality work, great price, friendly people.
Mark Counsel
They built me a custom sounds system from top to bottom and explained to me about what to expect from my system. All of the staff was very helpful.