---
product_id: 385377632
title: "W8K9D4 2000W Peak 8-Inch Car Audio Subwoofer Dual 4-Ohm, High-Power Output, Durable Build, Deep Bass, for Car Audio Enthusiasts | CEA Rated, K9 Series, Cast Aluminum Basket, 122 Oz Double Stacked Magnet, Non-Pressed Paper Cone, Foam Surround, OFC Wire"
brand: "rockville"
price: "$1139.93"
currency: USD
in_stock: true
reviews_count: 5
category: "Rockville"
url: https://www.desertcart.us/products/385377632-w8k9d4-2000w-peak-8-inch-car-audio-subwoofer-dual-4
store_origin: US
region: United States of America
---

# 2000W Peak Power Dual 4-Ohm Voice Coils Cast Aluminum Basket W8K9D4 2000W Peak 8-Inch Car Audio Subwoofer Dual 4-Ohm, High-Power Output, Durable Build, Deep Bass, for Car Audio Enthusiasts | CEA Rated, K9 Series, Cast Aluminum Basket, 122 Oz Double Stacked Magnet, Non-Pressed Paper Cone, Foam Surround, OFC Wire

**Brand:** rockville
**Price:** $1139.93
**Availability:** ✅ In Stock

## Summary

> 🎵 Unleash the bass beast – your car’s new heartbeat awaits!

## Quick Answers

- **What is this?** W8K9D4 2000W Peak 8-Inch Car Audio Subwoofer Dual 4-Ohm, High-Power Output, Durable Build, Deep Bass, for Car Audio Enthusiasts | CEA Rated, K9 Series, Cast Aluminum Basket, 122 Oz Double Stacked Magnet, Non-Pressed Paper Cone, Foam Surround, OFC Wire by rockville
- **How much does it cost?** $1139.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/385377632-w8k9d4-2000w-peak-8-inch-car-audio-subwoofer-dual-4)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Installation & Fit:** Compact 7.32-inch cutout and custom gasket ensure airtight, hassle-free mounting in most enclosures.
- • **Thunderous 2000W Peak Power:** Feel every beat with deep, resonant bass that commands attention on every drive.
- • **Heat-Resistant OFC Voice Coils:** USA-made OFC wire and vented T-yoke keep your subwoofer cool during marathon listening sessions.
- • **Flexible Dual 4-Ohm Voice Coils:** Customize your setup with versatile wiring options for maximum amplifier compatibility.
- • **Built to Last with Cast Aluminum:** Durable, lightweight basket engineered for high power and minimal distortion.

## Overview

The Rockville W8K9D4 is a high-performance 8-inch car subwoofer delivering 2000W peak and 500W RMS power with dual 4-ohm voice coils for flexible wiring. Its rugged cast aluminum basket and ultra-stiff non-pressed paper cone ensure durability and minimal distortion. Featuring USA-made OFC wire voice coils with advanced heat dissipation, it guarantees reliable, deep bass across 48Hz-800Hz frequency range. Designed for easy, airtight installation, this subwoofer is perfect for car audio enthusiasts seeking powerful, clear bass with long-lasting build quality.

## Description

Rockville W8K9D2 K9 Series 8" Dual4-Ohm Car Subwoofer. Peak Power Handling: 2000 Watts. Program Power Handling: 1000 Watts. CEA Rated RMS Power Handling: 500 Watts. 2. 5" 4-Layer ASV Voice Coils Wound with OFC Wire Made in USA. This voice coil is stable up to 200 degrees Celsius The voice coil windings are made in the USA . Double Stacked 122 Oz High Quality Magnet. Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient And Lighter Weight. Two Chrome-Plated Binding Post Terminals. Black Non-Pressed Paper Cone With Beautiful Finish. Our cones are ultra-stiff. They are thicker and stronger than other subs on the market making our subs able to handle more power. . Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion. Black Stitching Cone Reinforcement Ensures Long Life. New Ultra-stiff Polypropylene (PP) Dust cap. Impedance: Dual 4-Ohm Voice Coils. Vented Hole on T-yoke Enhances Heat Dissipation. Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet. Custom Rockville Mounting Gasket Looks Beautiful and Makes it Easy To Mount the Subwoofer Air-Tight. High BL Magnetic Motor Gap. We use the highest grade black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated. Poly cotton spider with very good elasticity. Cutout Diameter: 7. 32” inches. Mounting Depth: 5. 91” inches. Frequency Response: 48 hz- 800hz. 10mm T-Yoke + 10mm Washer. Sensitivity: 81. 2dB. Sealed Enclosure Volume: 0. 28-0. 42 Cubic Feet. Vented/Ported Enclosure Volume: 0. 64-0. 92 Cubic Feet. Weight: 18. 74 Lbs. . Shipping Weight: 20. 95 Lbs. . Shipping Box Dimensions: 11. 42"x 11. 42"x11. 81" Inches

Review: Bass is not an issue - Best 8" subwoofer Can handle bass and performance
Review: Great subwoofers - Great product. Packaging was good, arrived on time, unpacked an threw in a box an sound amazing.

## Features

- HIGH-POWER PERFORMANCE:- Delivers 2000W peak power and 500W RMS for deep, resonant bass. Dual 4-ohm voice coils ensure flexible wiring options for optimal amplifier compatibility, ideal for car audio systems
- DURABLE CONSTRUCTION:- Features a cast aluminum basket and ultra-stiff non-pressed paper cone, built to handle high power with minimal distortion. High-grade glue withstands extreme temperatures.
- SUPERIOR SOUND QUALITY:- Thick foam surround and black stitching cone reinforcement provide clear, distortion-free bass. Frequency response of 48Hz-800Hz suits various music genres.
- EFFICIENT HEAT DISSIPATION:- Vented T-yoke and 2.5-inch 4-layer ASV voice coils, wound with USA-made OFC wire, maintain performance during extended use, ensuring long-lasting reliability.
- EASY INSTALLATION:- Custom Rockville mounting gasket simplifies airtight setup. Compact 7.32-inch cutout and 5.91-inch mounting depth fit most enclosures, perfect for custom car audio builds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07S81WMS1 |
| Age Range Description | Adult |
| Antenna Location | car |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #912,999 in Electronics ( See Top 100 in Electronics ) #385 in Car Component Subwoofers |
| Box Contents | Car Audio Subwoofer |
| Brand | Rockville |
| Brand Name | Rockville |
| Colour | Black |
| Compatible Devices | Car Audio System |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | wired |
| Connectivity Technology | wired |
| Control Method | Voice |
| Controller Type | Voice control |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 164 Reviews |
| Enclosure Material | Aluminum |
| Frequency Response | 800 Hz |
| Global Trade Identification Number | 00819216023181 |
| Impedance Unit of Measure | 4 Ohms |
| Input Voltage | 12 Volts |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 27.9D x 27.9W x 27.9H Centimeters |
| Item Type Name | Rockville W8K9D4 8" Inch 2000w Peak Car Audio Subwoofer Dual 4-Ohm Sub 500w RMS CEA Rated |
| Item Weight Unit of Measure | 17 Pounds |
| MP3 player | No |
| Manufacturer | Rockville |
| Model Name | W8K9D4 |
| Model Number | W8K9D4 |
| Mounting Type | Car Mount |
| Network Connectivity Technology | wired |
| Number of Audio Channels | 2.1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Features | Subwoofer |
| Speaker Maximum Output Power | 2000 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Car |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Speaker Diameter Unit of Measure | 8 Inches |
| Tweeter Driver Diameter | 1 Inches |
| UPC | 819216023181 |
| Unit Count | 1.0 Count |
| Wireless Technology Type | Bluetooth |
| Woofer Driver Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Mono
- **Brand:** Rockville
- **Connectivity Technology:** wired
- **Frequency Response:** 800 Hz
- **Speaker Maximum Output Power:** 2000 Watts

## Images

![W8K9D4 2000W Peak 8-Inch Car Audio Subwoofer Dual 4-Ohm, High-Power Output, Durable Build, Deep Bass, for Car Audio Enthusiasts | CEA Rated, K9 Series, Cast Aluminum Basket, 122 Oz Double Stacked Magnet, Non-Pressed Paper Cone, Foam Surround, OFC Wire - Image 1](https://m.media-amazon.com/images/I/71cnCMYzcRL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bass is not an issue
*by H***O on 5 May 2026*

Best 8" subwoofer Can handle bass and performance

### ⭐⭐⭐⭐⭐ Great subwoofers
*by S***N on 7 December 2025*

Great product. Packaging was good, arrived on time, unpacked an threw in a box an sound amazing.

### ⭐⭐⭐⭐ Integrity proven
*by J***G on 19 February 2026*

Was running hippo massive 8s in my F150. Regrets cause both 8s failed within months, to my surprise the Rockville 8s W8k9d4s have a very impressive bass and have handled higher volume. Definitely integrity proven, Im happy.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-20*