Here are the specs:
(A-weighted) 103 dB below rated output for all inputs except Phono. 93 dB below rated 10 mV phono input.
Total Harmonic Distortion (THD):
Less than 0.009% from 20 Hz to 20 kHz at rated output.
Less than 0.0009% at 1 kHz with IHF load.
Phono: Less than 0.009% from 20 Hz to 20 kHz.
Intermodulation Distortion (IMD):
(60 Hz and 7 kHz 4:1) Less than 0.0025% at rated output.
Phono: Less than 0.0025% at rated output.
Adjustable 30 to 50 dB (33 to 330 mV for rated output).
18 dB per octave slope, down 32 dB at 10 Hz.
Bass compensation matched to ISO curves (Robinson-Dadson) down to 60 phons; tracked to Level (gain) control with active network to eliminate unwanted subsonic boost.
Seven second turn-on delay during which the outputs are shorted to prevent turn-on transients from reaching the speakers.
Tape, Tuner, CD and Aux 25 kohms; phono 47 kohms in parallel with less than 50pF.
250mV applied to Tape, Tuner, CD or Aux input yields full rated output at full gain of 20 dB.
Main and phono outputs: 2.5 volts
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