Specifications for Classic Sixty and Classic Sixty SE

Power:
60 watts per channel from 30 Hz to 15 KHz at no more than 1.5 % THD, both channels driven into 4 ohms (also available connected for 8 or 16 ohm loads)
Sensitivity: 0.7 V to rated power
Frequency Response (at 10 watts): 20 Hz to 20 kHz, +/- .3 dB
Hum and Noise: 96 dB below rated power
Input Impedance: 100 kOhms
Tube Complement: 1 x 6189, 2 x 6922, 4 x EL34 (Classic Sixty), 4 x KT120 (Classic Sixty SE)
Dimensions: 13.25D x 17.375W x 6.625H inches
Weight: 41 Lbs.