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Rockville

W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Ford F-150 Super Crew Box Bundle

W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Ford F-150 Super Crew Box Bundle

Underseat Dual 8" Ported Kit, 2 Subs, 0.8 cu ft/ea, Enclosure, Install Hardware

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Regular price $394.85
Sale price $394.85 Regular price $0.00
Features
    • Two 8" dual 4-ohm subs, 500W RMS each
    • Ported dual 8" box for 2009+ F-150 Super Crew
    • Ultra-stiff cones, cast aluminum frames
    • Includes 14 AWG wire, screws, terminals
    • 35 Hz tuning for rich low-end impact
    • (2) Rockville W8K9D4 8" subwoofers
    • Dual 8" Ford F‑150 Super Crew ported enclosure
    • Install kit: 20 screws, 20' 14 AWG wire, 4 spade terminals

SKU: SKU: (2) W8K9D4+REC111+K2

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Product Description

Elevate your truck’s soundstage with a purpose-built bass solution. This package pairs two K9‑series 8" subwoofers with a 35 Hz–tuned, underseat ported enclosure designed for Ford F‑150 Super Crew. Expect deep, controlled lows and quick transients thanks to USA‑wound 2.5" coils, rigid cones, and high‑BL motor gaps. The bed‑liner finish and braced ¾" MDF construction deliver durability and acoustic integrity. Included wiring hardware supports a clean, secure install. A sophisticated, space‑savvy system for daily driving and weekend playlists.

Features

    • Tuned For Musicality

      Optimized air space and port tuning balance deep extension with tight, responsive punch.

    • Rugged, Refined Build

      Bed-liner coated ¾" MDF enclosure resists wear while minimizing panel resonance for cleaner bass.

    • Consistent Thermal Handling

      2.5" OFC voice coils and vented T‑yokes dissipate heat for sustained output.

    • High-Control Motor

      Double-stacked magnets and stiff suspensions keep cones linear at elevated excursion.

    • Install-Ready Accessories

      Includes quality 14 AWG wire, fasteners, and spades to complete the enclosure hookup.

Technical Specifications

  • Type Dual 8" underseat subwoofer and enclosure bundle
  • Compatible vehicles 2009–2024 Ford F‑150 Super Crew; 2017–2024 F‑250/F‑350
  • Enclosure air space 0.8 cu ft per sub
  • Enclosure tuning 35 Hz
  • Sub impedance (each) Dual 4 ohm
  • Voice coil diameter 2.5 in
  • Magnet weight (each) 122 oz

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