Description Description Of The Polk Audio ES10 Subwoofer (Black) – Launch Price: This versatile 10″ subwoofer enhances low-end performance of midsize home-theater and music systems with a robust amplifier, Power Ports, and advanced controls. Equipped with a robust Class D amplifier, Power Port technology, and Time-Smart Phase Control, the ES10 subwoofer delivers balanced, impactful bass with unparalleled precision. Its sleek cabinet complements Signature Elite systems and fits anywhere. Forward-firing long-throw 10″ woofer Acoustically optimized cabinet Two internal Power Ports Advanced DSP Time-Smart Phase Control
