RCA MI 12222 15 Watt Theatre/ Studio/ PA Vacuum Tube Amplifier

Specifications: Voltage: 105-125 V, 50-60 cycles Power Consumption: 120 Watts Input Impedance: (Mic) 560,000 Ω, (Phono) 500,000 Ω  Load Impedance: 4, 8, 15 and 250 Ω  Frequency Response: ± 2 db @ 50 to 7000 cycles Power Output: 15 Watts Average Overall Gain: (Mic) 125 db, (Phono) 86 db Tube Compliment: 6J7 - First Amplifier (RCA) 6N7 - Mixer Amplifier (RCA) 6N7 - Amplifier, Phase Inverter (RCA) 2x 6L6GC - Power Output (Tung-Sol) 5Z3 - Rectifier (RCA) Dimensions: 8.5" x 8.75" x 14.5" Weight: 16 lbs.