Video of K5 Series UPDATED: Loaded Sub Enclosure Features: Rockville Single 12" K5 1400w Car Subwoofer Pre-loaded In Vented Sub Enclosure Peak Power Handling: 1400 Watts Program Power Handling: 700 Watts CEA Rated RMS Power Handling: 350 Watts Final Impedance: 4 Ohm ¾” MDF enclosure Bonded stapled and braced Computer designed vents Angled at 15 % for perfect bass alignment High quality aviation grade tweed carpet Satin Nickel speaker wire push terminals Enclosure air space is 1.52 Cu Ft per sub Vent dimensions (inches): 2.25" x 7" x 8.5" Tuning frequency of enclosure: 35 Hz 2" 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) Wire The wire we use to wind the voice coil is imported from Japan which is way better quality than the standard China wire 50 Oz High Quality Magnet Cast Iron Basket With Black Sanded Finish Fiber Reinforced Ultra Stiff Black Non-Pressed Paper Cone – This cone is very efficient which makes the speaker sound louder even without requiring a lot of power to push it Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion Blue Stitching Cone Reinforcement Ensures Long Life Polypropylene Dustcap Gold-Plated spring loaded push terminals Impedance: Single 4-Ohm Voice Coils Vented Hole on T-yoke Enhances Heat Dissipation Mounting Gasket with Rockville branding Makes it Easy To Mount the Subwoofer Air-Tight High BL Magnetic Motor Gap High grade black glue that handles extremely high temperatures which allows our woofer to handle even more power Cutout Diameter: 11.02” inches Mounting Depth: 5.03” inches Frequency Response: 25 Hz - 1.5K kHz 6mm T-Yoke + 6mm Washer Sensitivity: 88dB Weight: 10.1 Lbs. Loaded enclosure weight: 41.5 Lbs. Loaded enclosure dimensions (inches): 18.25” x 14.25” x 16.25” Features of Amplifier: Rockville dB11 1400w/700w RMS 2-Ohm Class-D Mono Car Amplifier and Bass Remote CEA Compliant Power Ratings (Rated at less than 1% distortion) (Use these CEA ratings when matching and comparing with other CEA compliant brands such as Kicker, Rockford Fosgate, etc.) - 2 Ohm: 350 Watts x 1 Channel