Video of K5 Series UPDATED: Loaded Sub Enclosure Features: Rockville Single 15" K5 2000w Car Subwoofer Pre-loaded In Vented Sub Enclosure Peak Power Handling: 2000 Watts Program Power Handling: 1000 Watts CEA Rated RMS Power Handling: 500 Watts Final Impedance: 2 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 3.28 Cu Ft per sub Vent dimensions (inches): 2.5" x13" x 12.5" Tuning frequency of enclosure: 35 Hz 2.5" 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 60 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 Dust cap Gold-Plated spring loaded push terminals Impedance: Single 2-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: 13.85 inches Mounting Depth: 5.98 inches Frequency Response: 28 Hz - 1.0K kHz 6mm T-Yoke + 8mm Washer Sensitivity: 90dB Weight of enclosure: 65.7 Lbs. Dimensions of enclosure: 23 “x 18.5" x 20" Shipping Weight: 77.8 Lbs. Shipping Box Dimensions: 24.2" x 22.4" x 22" Features of Amplifier: Rockville dB12 Mono Class D 2 Ohm Amplifier 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: 500 Watts x 1 Channel