Rockville W8K9D4 8-Inch Dual 4-Ohm Car Subwoofer — 2000W Peak, Deep Bass

Overview

Rockville W8K9D4 is an 8 inch subwoofer designed for car audio enthusiasts who want deep, controlled bass and reliable performance in real world driving conditions. Built for power, it blends a compact footprint with rugged construction.

Power and wiring flexibility

With a peak power handling of 2000 watts and a recommended RMS around 500 watts, this subwoofer has ample headroom for dynamic tracks when paired with the right amplifier and enclosure. The dual 4 ohm voice coils offer flexible wiring configurations to suit your amp setup.

• 2.5 inch 4-layer ASV voice coils wound with USA-made OFC wire for high temp stability
• Cast aluminum basket contributes to efficiency and durability
• Vented heat dissipation helps maintain performance during extended playback

Sound quality and durability

The cone is black non pressed paper with tough stitching and reinforcement, designed to resist distortion while delivering clean lows. A thick foam surround further reduces unwanted movement and keeps every note tight at high power.

• Frequency response spans from 48 Hz up to 800 Hz for versatile music coverage
• Dust cap is ultra stiff, helping cast a precise performance

Build and heat management

Key features include a vented T yoke, a 10 mm yoke plus an additional tension washer for robust magnet control, and high temp bonding materials. These elements work together to withstand demanding listening sessions.

Installation and enclosure options

Designed for easy integration, it ships with a dedicated mounting gasket and specifies a 7.32 inch cutout and 5.91 inch mounting depth. Recommended enclosure volumes cover sealed and vented configurations to suit your space.

Note that results depend on your entire system configuration. This description highlights the possibilities and practical benefits you may experience with the right amplifier, enclosure, and wiring choices.