Power output: (woofer) 16w rms , (satellite)12wx 2 rms , frequency response: (woofer) 30hz-120hz (satellite) 120hz-20hz , sensitivity , input: 300mv , distortion: 0.3% At 1w 1hkz , s/n ratio: more than 65db , separation: more than 40db driver unit: (woofer driver) 5.25 Magnetically shielded (satellite driver) 2.5 Magnetically shielded , audio input socket: (input 1) 3.5Mm stereo plug (input 2) rca plug, audio output socket: rca socket , product size: 201x72x12mm(amplifier) 230x230x260(woofer speaker) 100x100x100mm(satellite speaker)