Sundown Audio U Series 8" D4 Subwoofer: Unleash Powerful Bass in Any Setup.
The Sundown Audio U Series 8" D4 Subwoofer delivers exceptional bass performance in both high-end competition systems and everyday listening.
This versatile woofer is designed to deliver 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.
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.
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.
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.
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.
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 for enhanced frequency response.
The v.2 motor also includes an extended pole piece to ensure the coil remains controlled even under high stress.
