American Bass HD Series 8" Subwoofer Dual 4 Ohm

The American Bass HD Series 8" Subwoofer Dual 4 Ohm is an 8-inch, dual 4-ohm woofer built for hardcore car-audio enthusiasts who demand gut-wrenching, controlled bass. It delivers 400W RMS (800W max) with a 135 oz magnet, housed in a cast basket and optimized for a 1.0–1.25 ft³ ported enclosure, designed to pair with VFL amplifiers when used as a pair.

• RMS POWER: 400W — Continuous power handling for sustained bass when driven by a compatible amplifier.
• MAX POWER: 800W — Peak power capability for short-term transients and dynamic bass effects.
• IMPEDANCE (OHMS): D4 — Dual 4-ohm coils, offering wiring flexibility within a system design.
• SENSITIVITY DB: 84.6 — Indicates efficiency; explains how much output you get from a given input power.
• MOUNTING DEPTH (IN): 6.14 — Depth required in the mounting location; critical for fitment behind panels or in trunks.
• CUTOUT SIZE (IN): 7.36 — Diameter of the mounting hole needed for installation.
• PORTED BOX (FT³): 1 – 1.25 — Recommended ported enclosure volume per unit for best bass extension and control.
• MAGNET SIZE (OZ): 135 — Heavy magnet contributes to cone control and linear excursion under high power.
• VOICE COIL SIZE: 2.5 — Diameter of the voice coil, affecting heat dissipation and power handling capability.
• BASKET TYPE: CAST — Rigid frame that helps maintain alignment during heavy excursion and reduces flexing.
• RECOMMENDED AMP (PAIR): VFL 1K / VFL 4800.1 — Suggested amplifiers when using two units in a system for paired subs.

In a properly sized ported enclosure (1.0–1.25 ft³ per sub), this HD8 delivers strong, controlled bass with solid mechanical stability thanks to the large 135 oz magnet and cast basket. The dual 4-ohm coils provide wiring flexibility to fit your electrical setup, and the 6.14" mounting depth plus 7.36" cutout shape installation planning for typical automotive installations. With 400W RMS of continuous power and up to 800W peak, paired with the recommended VFL amplifiers, the HD Series 8" is designed to deliver demanding bass from a compact 8-inch driver.