Sansui - C-77 Förförstärkare

The Sansui C-77 is a vintage stereo preamplifier from the early 1980s (typically 1980–1981), known for its distinct "SuperCompo" styling and wide range of control options. It was originally designed to be paired with the Sansui B-77 power amplifier, but can work with any other amp.

Features & Design
Phono Support: Built-in phono stage supporting both Moving Magnet (MM) and Moving Coil (MC) cartridges.
Tone Controls: Includes bass and treble adjustments, with the unique ability to select turnover frequencies (e.g., 100Hz for bass) to shape the sound more precisely.
Visual Interface: Features an array of knobs, flip switches, and a color display for source transfer, giving it a tactile "instrument-like" feel often compared to vintage aviation or military gear.

Number of inputs:
Input sensitivity:
Phono MM: 2.5 mV, 47 kOhm, 180 mV max.
Phono MC: 0.1 mV, 10 Ohm
Tuner: 150 mV, 47 kOhm
AUX: 150 mV, 47 kOhm
Tape Play A, B: 150 mV, 47 kOhm
Tape DIN: 150 mV, 47 kOhm
Number of outputs:
Tape Rec: 150 mV
Tape DIN:
Headphones
2 pairs of loudspeakers

Technical Data
frequency response: 5 Hz - 70 kHz, + 0.5 dB, - 2 dB
Signal-to-noise ratio:
Phono MM: 80 dB
Phono MC: 60 dB
High Level: 90 dB
Tone control:
Bass: ± 10 dB
Treble: ± 10 dB

Loudness: yes, infinitely variable
High Filter: yes
Low Filter(Subsonic): yes
Mute: yes

Special Features
Phono preamplifier MM/MC
Mono switching
Fader with display