Features: 12" Oversized Cone Subwoofer Peak Power 2000W Low Profile Sealed Down-Firing Design Cross Section Unit Oversized Diaphragm Low-frequency output is increased because of a larger cone size. The cutout diameter has remained the same making this feature of the new XR woofers ideal for most vehicles where space is a premium. The XR woofers are ideal for a small sealed box. Reinforcing Ribs (Cone) The newly designed cone features ribbing that adds strength to the cone and minimizes distortion. Strong Magnetic Circuit Kenwoods engineers designed a strong magnetic circuit with the purpose of reproducing deep low frequencies. Their efforts employed a large magnet and optimized yoke. Stress-free Spider By adopting a "Stress-free Spider" and a "Thermal Efficient System" the mechanical and thermal durability has been improved dramatically delivering smooth and strong bass sound with loud lasting reliability. eXcelon Subwoofers Subwoofers are one of the most important pieces of the sound quality puzzle. eXcelon oversized woofers provide quick response and offer stable and powerful bass that remains true to the original recording. Test and Measurement Subwoofer development requires a diligent testing process including an anechoic chamber power testing facility and the most advanced desktop applications for design and simulation. These high standards allow KENWOOD eXcelon speakers to deliver their expected performance and have long-term reliability so your music can be enjoyed for many years. Sealed Down-Firing Enclosure Durable 3/4" MDF and sealed down-firing enclosure add rich and strong bass to your sound system. Specifications Subwoofer Specification: 12" Oversized Cone Subwoofer Peak Power: 2000W RMS Power: 400W Impedance: 2 Single Voice Coil Frequency Response: 31Hz - 300Hz FeaturesDual Ventilation System Stress-Free Damper 8 AWG Push Terminals Rubber Magnet Cover Encloser Specificatio