Bass you can feel. sub8 is a sealed box, front-firing subwoofer offering 250W of powerful bass extension, perfect for music or home theater. A precise, low-pass filter makes sub8 a perfect match with any Kanto speaker, allowing you to dial in the perfect cutoff frequency. Its 8" paper cone driver enables true sub-bass reproduction with low-end that has real weight. Phase adjustment, power saving auto-off and full L/R line level input round out this high-performance package.