The Klipsch P-312W is a high-performance subwoofer designed for home theater systems. It features a 12-inch woofer and a built-in amplifier with a power output of 800 watts. The subwoofer is part of Klipsch's professional series and is known for its deep, powerful bass reproduction. It has a frequency response range of 24Hz to 125Hz and offers adjustable crossover and phase controls for fine-tuning. The P-312W is equipped with both line-level and speaker-level inputs for easy connectivity with home theater receivers or amplifiers. It is designed to deliver immersive and impactful low-frequency effects in movies and music.