Boston Acoustics Replacement for MCS 160 Satellite Speaker w/3" Mid Bass Driver (Certified Refurbished) Certified Refurbished product is tested & certified by Boston Acoustics to work like-new. The product includes all original accessories, and is backed by a 90 Day warranty. Replacement for Boston Acoustics MCS 160 Satellite Speaker 3-inch Mid Bass Driver with 1/2-inch Soft Dome Tweeter Ideally suited for use as a 5.1 channel solution in a high-quality home theater or music system Frequency response: 120Hz - 120kHz, 3 dB, Recommended power : 10 to 100 watts, Sensitivity: 88 dB 2.8V at 1 watt/1 m, Impedance: 8 ohms (nominal)