STA-20 (310-1979) Specifications Faxback Doc. # 8407 AMPLIFIER-PREAMPLIFIER SECTION Audio Output.......................RMS...............5 watts Harmonic Distortion...............................Under 0.8% Frequency Response..................+/-1 dB ....40-20,000 Hz Sensitivity......................Magnetic Phono.....L 2.5 mV ....................................................H 6 mV ..................................Tape In...........L 150 mV ....................................................H 1.2 V .................................Auxiliary /Tuner.....200 mV Tone Control...............................+/-10 dB @ 100 Hz ..........................................+/-6 dB @ 1,500 Hz ........................................+/-10 dB @ 10,000 Hz Equalization RIAA....................................+/-1 dB Loudness Compensation......+/- 13 dB @ 50 Hz @ -30 dB Volume Hum (below rated output).........................Phono-60 dB .............................................Tuner/Aux-70 dB Output Impedance................................4 to 16 ohms Power Requirement.............................120 V 60 Hz AC