פרטים תכונות מפרט תיאור Pioneer TS-W3002D4 Champion Series PRO: Powerful by Design Introducing the series that changed the way Pioneer makes subwoofers: The Pioneer Champion PRO Series. The patented technologies behind the PRO series of subwoofers bridge the gap between quality bass and an affordable price. They feature an air suspension system that creates a spring-like effect and a compressed air chamber within the subwoofer. The result is powerful, deep bass. They are developed to utilize the air space surrounding the subwoofer so that they can be installed in smaller boxes, yet still retain that solid low bass. For the Champion PRO series of subwoofer, Pioneer uses high-grade materials that will last a long time. The wide-roll 3-layer fiber radial surround improves the power handling of the sub, while reduces the distortion. At the bottom of the chassis sits two double-stacked magnets to provide excellent power and response. The Pioneer Champion PRO series delivers incredible booming bass that is loud, powerful, and accurate.