Rockville

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

Name: W8K9 8" Dual 4-Ohm Subwoofers 2-Pack + Dual 8" Ford F-150 Super Crew Box Bundle
Brand: Rockville
SKU: (2) W8K9D4+REC111+K2
Price: 394.85 USD
Availability: InStock

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

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$394.85

$394.85 ~~$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

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What's Included in the box

(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.

This Bundle Includes

W8K9D4

Experience powerful, clear bass with the Rockville W8K9D4 K9 Series 8" Dual 4-Ohm Car Subwoofer. Designed for high performance and visual appeal, it fits sealed or vented enclosures, offering robust sound and lasting durability. Premium materials and thoughtful design make it ideal for elevating your car audio environment.

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REC111

The REC111 under seat front fire subwoofer enclosure offers deep, powerful bass in a compact design. With 0.8 cubic feet per sub and a durable bed liner finish, it fits seamlessly under your seat, providing a refined look and robust sound for car audio enthusiasts who value both performance and aesthetics.

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K2

The K2 Dual Subwoofer Enclosure Installation Kit includes premium 14 AWG wire, 20 wood screws, and 4 spade terminals for flawless installation. Designed for car, home, or studio use, each component is expertly selected to deliver secure mounting and pure audio, elevating your sound system’s performance and style.

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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.

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

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
Cutout diameter 7.32 in
Mounting depth 5.91 in (sub), 11.25 in (box max)
Sensitivity 81.2 dB
Frequency response 48–800 Hz (sub)
Weight Sub: 18.74 lb each (approx.)
Dimensions Underseat front-fire; see vehicle-specific box specs

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