The Pioneer® Champion Series subwoofers have evolved from our award-winning “SPL Champion Edition” lineup, known for their deep and powerful bass production. This TS-A301S4 12-in. single-voice-coil component subwoofer features a large and powerful motor assembly for improved efficiency and sensitivity. The subwoofer's basket is optimized using a reinforced structure design for added strength and reduced vibration to deliver impressive sound quality. The 12-in. subwoofer has continuous power of 500 watts with a maximum peak of 1,600 watts. It features an advanced, 2-piece durable Honeycomb IMPP composite cone structure plus a rigid drive cone to deliver high output levels with reduced distortion. This speaker should be placed in an enclosure for best performance (enclosure not included)..