Video of K9 6.5" and 8" Subs:

Wiring for 1 DVC 4 Ohm SUBS:

Wiring for 2 DVC 4 Ohm SUBS:

Features:

• Rockville W65K9D4 K9 Series 6.5" Dual4-Ohm Car Subwoofer
• Peak Power Handling: 1000 Watts
• Program Power Handling: 500 Watts
• CEA Rated RMS Power Handling: 250 Watts
• 2" 4-Layer ASV Voice Coils Wound with OFC Wire Made in USA
• This voice coil is stable up to 180 degrees celcius! The voice coil windings are made in the USA!
• Double Stacked 66 Oz High Quality Magnet
• Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient And Lighter Weight
• Two Chrome-Plated Binding Post Terminals
• Black Non-Pressed Paper Cone With Beautiful Finish
• Our cones are ultra-stiff. They are thicker and stronger than other subs on the market making our subs able to handle more power.
• Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion
• Black Stitching Cone Reinforcement Ensures Long Life
• New Ultra-stiff PolyPropylene (PP) Dustcap
• Impedance: Dual 4-Ohm Voice Coils
• Vented Hole on T-yoke Enhances Heat Dissipation
• Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet
• Custom Rockville Mounting Gasket Looks Beautiful and Makes it Easy To Mount the Subwoofer Air-Tight
• High BL Magnetic Motor Gap
• We use high grade glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated
• Poly cotton spider with very good elasticity
• Cutout Diameter: 5.94" inches
• Mounting Depth: 4.17" inches
• Frequency Response: 52hz-800hz
• 8mm T-Yoke + 8mm Washer
• Sensitivity: 82.1dB
• Sealed Enclosure Volume: 0.14 - 0.4 Cubic Feet
• Vented/Ported Enclosure Volume: 0.4- 0.7 Cubic Feet
• Weight: 9.92 Lbs.
• Shipping Weight: 12.13 Lbs.
• Shipping Box Dimensions: 9.84" x 9.84" x 9.65" Inches

Detailed Info:

• Body: Non-Pressed Paper
• Gap Plate Inside Diameter:56.4mm (2.22 inches)
• Gap Plate Outside Diameter: 127mm (5.0 inches)
• Gap Plate Thickness: 8mm (0.31 inch)
• Yoke Outside Diameter: 50mm (1.97 inches)
• Yoke Thickness: 8mm (0.31 inches)
• Yoke Pole Diameter: 127mm (5 inches)

TS Parameters: