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W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle

Product Description Features Specifications

W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle

  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
  • W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle
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Rockville

W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle

W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Chevy/GMC Crew Cab Box Bundle

Vehicle-Specific Dual 8" Bass Kit, 2 Subs, Underseat 0.8 cu ft/ea, Enclosure, Install Hardware

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$419.85
$419.85 $0.00
Features
    • Two 8" dual 4-ohm subs, 500W RMS each
    • Underseat dual 8" ported box for GM/Chevy Crew Cab
    • 122 oz magnets, cast aluminum baskets
    • Includes 14 AWG wire, screws, terminals
    • Tuned to 35 Hz for deep, accurate bass
    • (2) Rockville W8K9D4 8" subwoofers
    • Dual 8" GM/Chevy Crew Cab ported enclosure
    • Install kit: 20 screws, 20' 14 AWG wire, 4 spade terminals

SKU: (2) W8K9D4+REC110+K2

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Product Description

This premium underseat bass package blends precision engineering with truck-ready design. Two K9 8" subwoofers deliver muscular, controlled low end, while the ported, bed-liner–finished enclosure is tailored for 2007–2024 GM/Chevy Crew Cab. The assembly optimizes air volume and tuning at 35 Hz for deep, resonant lows that complement factory interiors without sacrificing space. A complete wiring hardware kit streamlines installation. The result is refined, powerful bass that enhances every drive with a sophisticated, full-range soundstage.

Features

    • Engineered Low-End Authority

      35 Hz–tuned ported enclosure and dual 8" drivers create deep, musical bass that fills the cabin without boom.

    • High-Efficiency Motor Design

      Double-stacked 122 oz magnets and ultra-stiff cones convert amplifier power into clean output with minimal distortion.

    • Thermal Stability

      2.5" 4-layer ASV voice coils with USA OFC windings withstand heat for sustained, high-output listening.

    • Truck-Ready Construction

      ¾" MDF, bed liner finish, and bracing resist flex and wear for consistent performance under seats.

    • Ready-To-Install Package

      Includes speaker wire, screws, and terminals for a clean, secure hookup to your amplifier.

Technical Specifications

  • Type Dual 8" underseat subwoofer and enclosure bundle
  • Compatible vehicles 2007–2024 GM/Chevy Crew Cab (1500/2500HD/3500HD)
  • 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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