Pioneer 12" Dual 4 Ohm Voice Coil Subwoofer

* Aramid Fiber Interlaced Injection Molded Polypropylene (IMPP) Cone Construction * Butyl Rubber Surround for Strength and Linearity During High Excursion * Oversized 74.1 oz Double Stacked Magnet and Vented Pole Yoke for Increased Power Handling * Butyl Rubber Surround Made of a specially blended, highly durable and moisture-resistant compound, butyl rubber keeps the cone moving in a linear direction, seals the cone to the basket and quickly dampens cone vibration once the signal has changed or stopped. This results in less distortion and superior frequency response. * Aramid Fiber Interlaced Injection Molded Polypropylene (IMPP) Polypropylene (PP) is a tough thermoplastic resin that is an ideal material for a subwoofer cone - with low mass and high damping, PP cones offer good sensitivity and low distortion. However, polypropylene cones lack the rigidity and strength required for high output and extreme low bass. To resolve this, Pioneer engineers used advanced Computer-Aided Manufacturing to develop a p...