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Raxiom by JL Audio Base Stereo Subwoofer Upgrade Kit (15-22 Mustang Fastback)Find parts that fit my vehicle

Item 393866
AmericanMuscle no longer carries the Raxiom by JL Audio Base Stereo Subwoofer Upgrade Kit (15-22 Mustang Fastback). Please check out 1979-1993 Fox Body Mustang Interior Styling for an updated selection.
Raxiom by JL Audio Base Stereo Subwoofer Upgrade Kit (15-22 Mustang Fastback)
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    Product Information

    Features, Description, Reviews, Q&A, Specs & Installation


    • Raxiom Subwoofer Upgrade Kit by JL Audio
    • Delivers Deep, Powerful Bass
    • 12TW3-D4 Stealthbox Subwoofer
    • JL Audio JX500/1D Class D Amplifier
    • All Cables and Connectors are Included for a Hassle Free Install
    • For use with the Raxiom by JL Audio Base Stereo Upgrade Kit - 393865
    • Fits 2015-2022 Fastback Mustangs Equipped with Base Stereo Upgrade Kit


    Raxiom by JL Audio Optional Subwoofer. If you have upgraded your S550 Mustangs base stereo sound system with the Raxiom by JL Audio Base Stereo Upgrade Kit we bet your pretty happy with the results. However, if you love the sound of a deep, powerful bass you my feel that something is missing. That is why Raxiom turned to JL Audio yet again to help them find the perfect Subwoofer set up for their Base Stereo Upgrade Kit. By utilizing JL Audio's Stealthbox Subwoofer and Class D Subwoofer Amplifier this optional Upgrade Kit will deliver the deep, powerful bass you love.

    Stealthbox Subwoofer. This Raxiom Subwoofer Upgrade Kit includes JL Audio's 12TW3-D4 Stealthbox Subwoofer. The Stealthbox Subwoofer is a direct fit upgrade for your factory installed base stereo that has been upgraded to a Raxiom Base Stereo Kit part# 393865. The Stealthbox features an all-fiberglass, sealed enclosure design that is equipped with JL Audio's revolutionary 12TW3 thin-line subwoofer.

    JX500/1D Amplifier. To boost the power of the Stealthbox Subwoofer Raxiom chose JL Audio's JX500/1D Amplifier. This Amplifier employs a highly-efficient Class D design with a MOSFET power supply to deliver a strong 500 watts. Featuring a variable bass boost at 45 Hz with up to 12 dB of boost, this JL Audio Amplifier is configured as a low-pass filter with continuously variable cutoff frequency selection from 50-200 Hz. Dedicated hi-level inputs are included, in addition to conventional low-level RCA inputs. These inputs make it super easy to install the JX500/1D Amplifier to your original factory head unit.

    Application. This Subwoofer Kit was specifically designed to fit 2015 to 2022 Fastback Mustangs that are equipped with the standard OE base stereo system and have installed the Raxiom by JL Audio Base Stereo Upgrade Kit part# 393865.


    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Class D Subwoofer Amplifier
    • (1) Stealthbox Subwoofer
    • (1) Remote Bass Control
    • (1) 2-Way Fused Power Distribution Block
    • (1) 2-channel Core Audio Interconnect Cable

    Customer Reviews (1)

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      Reviews of Raxiom Interior products have an average rating of 4.1 out of 5

        Questions & Answers

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