The Hifonics HFX12D4 is a powerful 12-inch subwoofer designed to enhance your car audio system with deep, impactful bass. With a dual 4-ohm voice coil design, it offers flexible wiring options for easy integration into various setups. Whether you're upgrading your system or starting fresh, this speaker delivers impressive low-frequency response with clarity and precision.With 800 watts peak power and 400 watts RMS, the subwoofer produces rich, controlled bass. Its heavy-gauge, powder-coated steel basket minimizes vibrations, while the pressure-treated foam surround and poly-cotton spider ensure smooth cone movement and reduced distortion. A vented aluminum former and back venting system efficiently dissipate heat, allowing for consistent, high-performance sound.Designed for versatile installation, the speaker fits sealed and vented enclosures, providing either tight or booming bass. Its 5.61-inch mounting depth accommodates various vehicle types, while spade-style terminals allow secure wiring. With an 86dB sensitivity rating, it efficiently converts power into sound without overloading your amp.For those seeking a powerful yet reliable upgrade, the Hifonics HFX12D4 is a solid choice. Built for performance and durability, it transforms your car’s sound system, making every drive a dynamic listening experience. | Hifonics | | HFX12D4 12" Subwoofer, 800W Max 400W RMS Car & Powersports Speaker | Black | Best Buy