Sundown Audio U 8" D4 Subwoofer | 600 Watts RMS

Sundown Audio U 8" D4 Subwoofer | 600 Watts RMS

Experience unmatched bass performance with the Sundown Audio U 8" D4 Subwoofer, engineered to deliver powerful sound in a compact package. With 600 watts RMS power, this subwoofer is optimized for small ported enclosures, making it an ideal choice for both competition-grade setups and everyday driving experiences.

Superior Build and Performance

The U 8" D4 Subwoofer features dual 4-ohm voice coils, providing flexibility in wiring configurations to match your audio system. The 2.25” aluminum voice coil former ensures superior heat dissipation, while the high-temperature copper voice coil is designed to handle intense usage without compromising performance. The double-stitched surround and heavy-duty cast basket enhance durability, ensuring that this subwoofer can withstand the demands of high-power audio environments.

Advanced Cooling and Engineering

Designed for precision and reliability, the U 8" D4 Subwoofer incorporates a solid pole with vent channels and an aluminum shorting ring cap to minimize inductive distortions and maintain sound clarity. Rear gap-venting and top-plate cooling channels work together to regulate coil temperature, even during extended play. The double-stacked 9” wide ferrite magnet system, coupled with a robust top plate and shorting rings, smooths out frequency response while acting as a heat sink and airflow guide.

Versatile and Built for Competition

The U Series is renowned for its versatility, excelling in both competitive and daily driving setups. The custom aluminum frame, designed specifically for the U Series, features heat dissipation ribs for enhanced durability and performance. The v.2 motor also includes an extended pole piece, ensuring the coil remains controlled even under high stress, making the U 8" D4 a top contender in its class.

Key Features

• Power Handling: 600 Watts RMS for deep, powerful bass
• Voice Coil: Dual 4 Ohm for flexible wiring options
• Enclosure Compatibility: Optimized for small ported enclosures
• Cooling: Advanced rear gap-venting and top-plate channels for temperature control
• Construction: Heavy-duty cast basket with double-stitched surround
• Connectivity: Spring-loaded terminals accepting up to 8-gauge wire
• Design: Ideal for both competition and high-performance audio setups

Technical Specifications

• T/S Specs (D4 Version):
  • RE (Ohms): 6.34
  • FS (Hz): 41.288
  • VAS (L): 6.970
  • Qes: 0.519
  • Qms: 2.542
  • Qts: 0.431
  • BL (NA): 21.45
  • Mms (Grams): 145.239
  • Cms (mm/N): 102.308
  • Sensitivity (dB @ 1w/1m): 81.6 dB

Sundown Audio U 8" Dimensions

Enclosure Recommendations

• Sealed Enclosure: 0.3 cu ft net
• Ported Enclosure: 0.65-0.75 cu ft net
• Recommended Tuning: 35Hz
• Recommended Port Area: 9-12 sq in
• Displacement: 0.09 cu ft
• Physical Dimensions:
  • Depth: 6.02"
  • Outside Diameter: 8.70"
  • Cut-Out Diameter: 7.3"

Unleash the full potential of your sound system with the Sundown Audio U 8" D4 Subwoofer, the perfect blend of power, precision, and durability. Whether you're competing or cruising, this subwoofer delivers the performance you need to stand out.