Output Power: 30 Watts Front-Stage Electron Tube: 12AX7/ECC82 Supply Voltage: 110V-250V 50/60Hz Input Sensitivity: 80mV Frequency Response: 80Hz-11KHz SNR: ¡Ý70db Degree of Distortion: ¡Ü0.1% Drive Unit: 12¡å¡Á1/8¦¸