Powerful & Versatile Performance: The Sundown Audio U Series 8" D4 Subwoofer delivers robust bass with 750W RMS / 1500W Peak power, excelling in both competition setups and daily driving. Its versatile design ensures high-quality audio across various applications. Optimized for Small Ported Enclosures: Specifically designed for tight spaces, this subwoofer performs exceptionally in small ported enclosures with a recommended size of 0.65-0.75 cu ft net, a port area of 9-12 sq in, and a tuning of 35Hz, maximizing bass output in compact installations. Advanced Thermal Management: Featuring a 2.25" black aluminum voice coil former and high-temperature round-wire copper voice coil, combined with a solid pole, vent channels, aluminum shorting ring cap, rear gap-venting, and top-plate cooling channels, this subwoofer ensures superior heat dissipation for extended play. Durable & Robust Construction: Built for longevity, the U-8 D4 incorporates a heavy-duty cast basket, a double-stitched surround, and stitched-on heavy-duty tinsel leads to prevent fatigue. The bolt-through motor design ensures maximum ruggedness and reliability. Flexible Dual 4 Ohm Voice Coils: Equipped with Dual 4 Ohm voice coils (RE: 6.34 Ohms), this subwoofer offers flexible wiring configurations for optimal amplifier matching. Easily achieve a 1 Ohm or 4 Ohm final load, ensuring maximum power transfer and compatibility with a wide range of car audio amplifiers.

Sundown Audio U Series 8" D4 Subwoofer: Unleash Powerful Bass in Any Setup

Experience exceptional bass performance with the Sundown Audio U Series 8" D4 Subwoofer. Designed for both high-end competition systems and everyday listening, this versatile woofer delivers powerful, articulate bass in a compact form factor. Engineered with advanced materials and construction, the U-8 D4 ensures superior sound quality and long-lasting durability, making it an ideal choice for serious car audio enthusiasts.

Robust Power Handling & Dynamic Output: The U-8 D4 boasts impressive power handling, capable of managing 750 Watts RMS and 1500 Watts Peak power. This robust capability ensures that the subwoofer delivers impactful, distortion-free bass even at high volumes, providing a truly immersive audio experience. Its Sensitivity (Sens) of 81.6dB indicates efficient power conversion, translating amplifier output into powerful acoustic energy.

Optimized for Small Enclosures: This 8-inch subwoofer is specifically optimized for performance in small enclosures, particularly ported designs. For deep and impactful bass, a ported enclosure with a net volume of 0.65-0.75 cu ft, a port area of 9-12 sq in, and a tuning frequency of 35Hz is recommended. It also performs well in sealed enclosures, with a recommended size of just 0.3 cu ft net, making it incredibly versatile for various installation constraints. The 0.09 cu ft displacement further aids in maximizing usable enclosure volume.

Advanced Cooling & Durable Construction: The U-8 D4 is built to withstand demanding use, incorporating several thermal management features. It utilizes a 2.25" black aluminum voice coil former and high-temperature 4-layer copper voice coil wire for superior heat dissipation. Further enhancing cooling are the solid pole with vent channels, an aluminum shorting ring cap, rear gap-venting, and top-plate cooling channels. Its robust construction includes a heavy-duty cast basket, a double-stitched surround, and stitched-on heavy-duty tinsel leads to prevent fatigue and failure. The bolt-through motor design ensures maximum longevity and ruggedness.

Flexible Dual 4 Ohm Voice Coils: Equipped with Dual 4 Ohm voice coils (RE: 6.34 Ohms), the U-8 D4 offers exceptional wiring flexibility to perfectly match your amplifier's capabilities. You can easily configure the subwoofer for either a 1 Ohm (parallel wiring) or 4 Ohm (series wiring) final impedance, ensuring optimal power delivery and seamless integration into your car audio system. This versatility provides "Total System Control," allowing you to fine-tune for peak efficiency.

Precise Dimensions & Installation: The U-8 D4 boasts a mounting depth of 6.02", an outside diameter of 8.70", and a cutout diameter of 7.3". These precise measurements, combined with a 18mm Xmax, allow for versatile installation options while delivering powerful, extended bass. The U Series features a double-stacked 9” wide ferrite magnet system and a robust top plate f