Video of T4 Series Shallow Mount subs : Features: Rockville W8T4-S2 81000 Watt 2-Ohm Shallow Mount Car Subwoofer Power Handling: 1000Watts Peak Power / 500 Watts Program / 250 Watts RMS CEA Rating Ultra Stiff Paper – Composite Cone 3D Molded High Gloss – Acrylic Dust Cap Ultra Slim Expandedand Rolled Steel Basket High Density – Laminated Butyl Rubber Surround High Power Strontium – Magnet with Ultra Saturated High BL Motor Gap Vented Core Magnet – Motor Structure High Temperature – Aluminum Voice Coil Former Lightweight Compact – Design Ideal for Any Installation Magnet Protection – Rubber Band Dual Nickel Plated – Spring Loaded Push Terminals Shallow Mount – Subwoofer Impedance: SVC 2 Ohm Cutout Diameter: 7Inches Mounting Depth: 2.5Inches Frequency Response:39 Hz to 500 Hz Sensitivity: 90d – B @1w/1m Voice Coil: 1.5 High – Power Voice Coil Magnet Structure: 64oz Washer/Yoke Plates:6mm Machined Steel X-Max: 8.4mm – Peak-to-Peak Enclosure – Recommendations: SealePackage Include: 2 Rockville W8T4-S2 8 1000 Watt 2-Ohm Shallow Mount Car Subwoofer.
Voice Coil: 1.5 High Power Voice Coil. Magnet weight: 33 Oz. Washer/Yoke Plates: 6mm Machined Steel. X-Max: 8.4mm Peak-to-Peak.