{"product_id":"ds18-quad-8-subwoofer-enclosure-jeep-gladiator-jt-20-26-ebm-ffpglad-4x8","title":"DS18 Quad 8\" Subwoofer Enclosure for Jeep Gladiator JT (20-26) Ported Under-Seat EBM-FFPGLAD-4X8","description":"\u003cp\u003e\u003cstrong\u003eAdd four 8-inch subwoofers to your Jeep Gladiator without giving up the rear seating area with this ported under-seat enclosure from DS18. It fits beneath the rear seat and gives you the cone area of four subs without putting a large box in the middle of the cab.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe ported design is made for stronger low-end output than a comparable sealed box, making this a good starting point for a Gladiator audio system that needs enough bass to keep up when the roof and doors come off.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis is an empty enclosure. Subwoofers, amplifier and wiring are not included.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eFitment Information\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eJeep Gladiator JT Sport (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003eJeep Gladiator JT Sport S (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003eJeep Gladiator JT Willys (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003eJeep Gladiator JT Overland (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003eJeep Gladiator JT Rubicon (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003cli\u003eJeep Gladiator JT Mojave (2020, 2021, 2022, 2023, 2024, 2025, 2026)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eFitment Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eFits four-door Jeep Gladiator JT models\u003c\/li\u003e\n\u003cli\u003eInstalls beneath the rear seat\u003c\/li\u003e\n\u003cli\u003eDoes not fit the Jeep Wrangler JL or JLU\u003c\/li\u003e\n\u003cli\u003eDoes not fit the Jeep Wrangler JK or JKU\u003c\/li\u003e\n\u003cli\u003eCheck the rear under-seat area for factory storage, an OEM subwoofer or other accessories that may need to be removed\u003c\/li\u003e\n\u003cli\u003eConfirm the mounting depth and cutout requirements of your subwoofers before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eSpecs \u0026amp; Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eVehicle-specific Jeep Gladiator JT subwoofer enclosure\u003c\/li\u003e\n\u003cli\u003eHolds four 8-inch subwoofers\u003c\/li\u003e\n\u003cli\u003ePorted enclosure design\u003c\/li\u003e\n\u003cli\u003eInstalls under the rear seat\u003c\/li\u003e\n\u003cli\u003eFront-firing subwoofer layout\u003c\/li\u003e\n\u003cli\u003eUses otherwise wasted space beneath the rear seat\u003c\/li\u003e\n\u003cli\u003eDurable black finish\u003c\/li\u003e\n\u003cli\u003eDesigned for a cleaner installation than a loose universal subwoofer box\u003c\/li\u003e\n\u003cli\u003eDS18 part number: EBM-FFPGLAD-4X8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eOne DS18 quad 8-inch ported subwoofer enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSubwoofers, amplifier, amplifier wiring and speaker wire are sold separately.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eChoosing Subwoofers and an Amplifier\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis enclosure needs four matching 8-inch subwoofers. Pay attention to mounting depth, cutout diameter, power handling and voice-coil configuration when choosing the subs.\u003c\/p\u003e\n\n\u003cp\u003ePlan the final impedance before buying the amplifier. Four dual-voice-coil subwoofers can be wired several different ways, so the amplifier needs to be stable at the final load and provide enough RMS power for all four subs. Match the amplifier to RMS power rather than the larger maximum-power number.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe enclosure installs beneath the Gladiator's rear seat. Remove any factory under-seat storage pieces or accessories that interfere with the enclosure, test-fit the box and plan the amplifier and speaker wiring before mounting the subwoofers.\u003c\/p\u003e\n\n\u003cp\u003eThe rear seat still needs to open and close without pressing against the subwoofer surrounds. Check subwoofer clearance before completing the installation, then secure the enclosure so it cannot move while driving or off-road.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePairs Well With\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour Matching DS18 8-Inch Subwoofers:\u003c\/strong\u003e Using four identical subwoofers keeps the power handling, impedance and output consistent across the enclosure. Confirm the mounting dimensions before choosing the subs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDS18 Monoblock Subwoofer Amplifier:\u003c\/strong\u003e Choose the amplifier after deciding on the subwoofer voice-coil configuration so the final impedance and RMS power match correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/shop.redline360.com\/products\/linkswell-radio-jeep-wrangler-jl-gladiator-jt-18-22-t-style-12-1-android-9-gen-5-ts-jpjl12-1rr-5b\"\u003eLinkswell 12.1-Inch Radio for Jeep Gladiator JT\u003c\/a\u003e - Upgrade the Gladiator's radio and add the preamp connections needed to build a complete aftermarket audio system around the DS18 subwoofer enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eAbout DS18\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003eDS18 builds car, marine and powersports audio equipment, including vehicle-specific enclosures that make it easier to add more speakers and bass without filling the cabin with universal boxes.\u003c\/p\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":43002059817040,"sku":"EBM-FFPGLAD-4X8","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0058\/0252\/4785\/files\/ds18-quad-8-subwoofer-enclosure-jeep-gladiator-jt-20-26-ebm-ffpglad-4x8.jpg?v=1791406088","url":"https:\/\/shop.redline360.com\/products\/ds18-quad-8-subwoofer-enclosure-jeep-gladiator-jt-20-26-ebm-ffpglad-4x8","provider":"Redline360","version":"1.0","type":"link"}