Amplifier Section: 125 (W) x 68 (H) x 292 (D) mm. – Amplifier Section: 1.8 kg, 3.97 lbs. Frequency Response: 8 Hz to 600 kHz +0/-1 dB. Power Source: AC 120 volt 60 Hz (for USA and Canada) or AC 220/240 volt, 50 Hz.