PowerField 15

About the PowerField 15

The Definitive Technology PowerField 15 is a powered subwoofer featuring a 15-inch high-definition driver and a built-in amplifier rated around 185 to 250 watts RMS, designed to provide clean, powerful bass for home stereo or home theater systems. It includes fully adjustable electronic crossovers with variable low-pass and high-pass filters, volume control, and phase adjustment for seamless integration with main speakers. The cabinet is compact, approximately 17" x 17" x 17.5", with a non-resonant monocoque design to minimize distortion. It supports both high-level and low-level inputs and outputs, allowing flexible connectivity. The subwoofer is known for its excellent sound quality and has been in production since the 1990s, with some units still available used or refurbished. Typical frequency response extends down to about 20 Hz, with some models or variants claiming extension to 14 Hz. The PowerField 15 is suitable for audiophiles seeking deep, accurate bass in a relatively compact powered subwoofer.