• Delivering 300W RMS and 600W peak, this 6.5″ subwoofer brings tight, responsive bass to small or custom installations.
• Wire for 2 or 8 ohms depending on your setup, offering flexibility for single or multi-driver systems.
• Ultra-stiff composite cone and rubber surround deliver clean, distortion-free bass with superior strength.
• Best performance in a 0.35 cu ft tuned enclosure, producing tight, punchy bass ideal for compact builds.
• Stamped steel frame and Aero-style magnet motor with cooling ensure long-lasting performance under pressure.

Cadence Pro Car Audio 6.5" 300 Watt RMS 4-Ohm Dual Voice Coil Subwoofer US6D4

This Listing Includes:

• (1) Cadence US6D4 6.5" Car Subwoofer


• User Manual

Small in size but massive in performance, the Cadence US6D4 from the Ultra Shock Series is built to prove that true bass doesn’t require large space. Designed for clarity, punch, and precision, this 6.5-inch subwoofer delivers powerful, room-filling bass that transforms any car audio system.

Its vibrant orange steel frame and Kevlar-reinforced cone give the US6D4 a bold, professional look that matches its power. The dual 4-ohm voice coils provide flexible wiring options, allowing you to configure the subwoofer for 2-ohm operation when you want to maximize amplifier output or 8-ohm operation for multi-speaker setups that demand balance and control.

Specifications:

• Application Type: Car


• Model Series: US (Ultra Shock)


• Model Number: US6D4


• Size & Type: 6.5" Subwoofer


• Basket: Stamped Steel


• Cone: Kevlar Reinforced Ultra-Stiff Paper Composite


• Surround: High Excursion Natural Rubber


• Magnet: Aero Style Motor with Heat Pump Cooling


• Voice Coil: Dual 4 Ohm Voice Coil

Performance:

• Power Handling: 300W RMS / 600W Peak


• Frequency Response: 50 Hz - 800 Hz


• Sensitivity (SPL @ 1W/1m): 86 dB


• Impedance: Dual 4 Ohm


• Xmax: 6 mm


• FS: 65 Hz


• QTS: 0.48


• VAS: 4.85 L

Installation:

• Mounting Depth: 3.15" (80 mm)

Recommended Enclosures:

• Ideal Sealed Box Volume: 0.15 cu ft (4.25 L)


• Ideal Ported Box Volume: 0.35 cu ft (9.91 L)


• Port Diameter: 2"


• Port Length: 6.78"

Dimensions:

• Length: 10 in (254 mm)


• Width: 10 in (254 mm)


• Height: 7 in (178 mm)


• Weight: 13 lbs (5.9 kg)