Latest version(unit has some demo use, warranty) retail $5995

Input Impedance: 50,000 Ohms min, 95,000 Ohms max Output Impedance: 1,600 Ohms Maximum Gain: 9 dB Frequency Response: +/- 2 dB from 10 Hz to 76,500 Hz Hum and Noise: -80 dB Maximum Output Voltage before Clipping: 18 Volts Total Harmonic Distortion: < 0.08% Power Consumption: 30 Watts (true RMS) Tube Complement: 1 x EF86, 1 x 12BH7, 2 x 6922, 1 x 6FQ7 Dimensions: 17.5" W x 13.75" D x 4.5" H Net Weight: 22 lbs.