The Yamaha MS45DR is a 2.1-channel electronic drum-monitor system, well suited for home use or practice sessions. The system is comprised of a single powered subwoofer and two mountable 2-way satellite speakers. Each speaker is powered by a 20W amplifier, combining to offer a frequency response of 40 Hz to 20 kHz (-10 dB). The MS45DR includes a combination cable featuring an 8-pin DIN connector, which breaks out into stereo 1/4' and stereo RCA for connecting to the satellites and to your separately available drum module. Two pipe clamps, a power cord, and a cable band are also included.