C2X preamplifier. Frequency response: 10 Hz to 100 kHz Total harmonic distortion: 0.001% Input sensitivity: 0.1 mV (MC), 2.5 mV (MM), 150 mV (line) Signal-to-noise ratio: 88 dB (MC), 93 dB (MM), 106 dB (line) Channel separation: 86 dB (MM), 76 dB (MC), 90 dB (line) Output: 150 mV (line), 1.5 V (Pre out), 10 V (Pre out Max) Dimensions: 435 x 73.5 x 353 mm Weight: 8 kg Year: 1985 Yamaha B2X power amplifier Power output: 170 watts per channel into 8 Ω (stereo) Frequency response: 10 Hz to 100 kHz Total harmonic distortion: 0.002% Damping factor: 200 Input sensitivity: 1.3 V Signal-to-noise ratio: 124 dB Speaker load impedance: 4 Ω to 8 Ω Dimensions: 435 x 164 x 422 mm Weight: 28 kg Year: 1985