FEATURES HI series tube amplifier have reliable quality, best tone. HI-140 is equipped remote control.   SPECIFICATION    RMS Power 2x40W Voltage AC110V/220V Sensitivity 200mv Volume 32LX30WX16H(cm) Distortion Factor 0.8% Signal-to-Noises 90dB Inputs 4 Groups Outputs 2 Groups Vacuum Tubes EL84X4 14AX7X2 Frequency 16Hz-60KHz Demension(mm) 500 *460*360 Gross weight 25.0kgs