Add deep bass excitement and extended dynamic thrills to your music or movie sound system with the easy-to-connect and easy-to-use PS-204. Its Dynamic Balance composite cone driver and non-resonant enclosure produces deep, smooth response with superior detail and accuracy, while limiting distortion. The sub is powered by a high-current amplifier producing dynamic power. A rotary volume control adjusts the volume of the subwoofer relative to the other speakers in the system and the unit offers a continuously variable low-pass filterthat is  adjustable. Easily accessible, professional-grade line- and speaker-level inputs, and speaker level outputs, allow easy connection to any system.