Ferrograph F307 Amplifier
Power output: 20 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 25kHz
Total harmonic distortion: 0.18%
Input sensitivity: 3mV (MM), 150mV (line)
Signal to noise ratio: 75dB (MM), 80dB (line)
Speaker load impedance: 8Ω to 16Ω
Dimensions: 16-1/8 x 5 x 9-5/8 inches
Weight: 16 lbs
Year: 1973