BEHRINGER F1220D Bi-Amped 250-Watt Monitor Speaker System with 12" Woofer 1" Compression Driver and Feedback Filter Black Lightweight 250-Watt 2-way monitor speaker system for live and playback applications Exceptional sound quality, wide frequency bandwidth and dynamic range True bi-amping mode with 2 amplifiers for ultimate sound reproduction Revolutionary Class-D amplifier technology: enormous power, incredible sonic performance and super-light weight Adjustable feedback filter and integrated limiter for ultimate system control and speaker protection