Yamaha CBR12, Passive Full Range Speaker, Equipped with: 12" + 1.4", Frequency range: 48 - 20,000 Hz, Rated power: 700 W peak/ 350 W program, Impedance: 8 Ohm, Sensitivity: 125 dB, Speaker twist inputs, Dimensions (W x H x D): 378 x 601 x 348 mm, Weight: 13.9 kg