CK100: IMPEDANCE:8 ohm COMPONENTS:woofer 1x10 RMS POWER:150W MAX POWER:300W FREQUENCY RESPONSE:40Hz-20KHz SENSITIVITY:94dB(1W/1M) DIMENSIONS(H×W×D):295x512x275 WEIGHT: 9.6kg /PCS(N.W) 20.75kg /A PAIR(G.W)