Sansui 771 receiver. Fully revitalized. Classic Vintage.
Sansui Electric Co., Ltd. was founded in 1947 as a manufacturer of transformers, but already in the 1960s it gained a reputation as a serious producer of audio components. Despite its huge popularity (especially in the United States) in the 60s and 70s, after 1985 the company began to bring much less profits than its rivals (Sony, Pioneer or Technics). It was the end of the heyday of hi-end equipment, which was related to an increase in sales of personal computers. At that time, Sansui Electric Co., Ltd. focused on the production of high-end components in Japan, and also started to produce high quality TV sets and other video equipment, while stopping exports. At the end of the 90s, the brand name was used on video devices manufactured by other companies.
Eventually, Sansui Electric Co., Ltd. as part of Grande Holdings went bankrupt in 2014. It is worth noting that Sansui was the first company to use transformers in audio equipment, and first to introduce to the market a high-voltage tube-transistor (hybrid) amplifier and a QS / RM system (Quadrasonic System / Regular Matrix), which allowed to obtain four-channel sound from two-channel one.
Sansui products already in the 60s were world-famous for their great quality of sound engineering, great design and the highest performance. This was possible mainly because each model was created from start to finish by Sansui experts. Only the best parts were used in production to ensure uniform and highest quality, and each device was repeatedly checked with the most accurate measuring instruments before it reached the customer. Thanks to this approach, Sansui Solid State receivers were characterized by low interference parameters, higher damping factors, greater dynamics, and above all, much better sensitivity and selectivity.
The Sansui 771 provided consumers with a greater stereo power and perfect sound quality thanks to its improved CBM (Circuit Board Module). In terms of technological capability this model surpassed other much more expensive receivers.
Increased technological potential made the Sansui 771 an excellent power amplifier. Sansui designed the unique CBM technology specifically for its top two and four-channel studio and consumer devices. This new design concept boosted the capability and reliability of electronics, it reduced cabling and equipment size. Moreover, the FM/AM tuner equipped with the MOS FET with a sensitivity of 2.0 uV (IHF) provides surprisingly high level of clarity even in blurred stereo signals.
The power bandwidth is particularly wide – from 15 to 40 000 Hz, whereas the THD and IM Distortion stand at 0.5%. This means the listener can enjoy a clear, precise playback of a wide spectrum of sound, from rich and soft bass to clear highs.
The new, wooden enclosure has been completely revitalized based on the original designs from the 70s. The wood used is rosewood. The wood finish is Chinese oil produced from natural oils and natural turpentine-based beeswax. Potentiometers in perfect condition. The device has been fully reviewed and serviced and equipped with new aluminum legs.
New green-amber illumination of the front panel.
Collector’s model. The device is in perfect condition.
– power – 2 x 32W at 8Ohm, stereo
– FM range – 88-108
– frequency response – 15Hz – 40 000Hz
– total harmonic distortion – 0.5%
– input sensitivity – 2,5mV (microphone), 2,5mV (MM), 100mV (DIN), 100mV (line)
– signal-to-noise ratio – 70dB (MM), 80dB (line)
– output – 100mV (line), 30mV (DIN)
– damping factor – 60
– channel separation – 45dB (MM), 45dB (line)
– dimensions – 52cm x 19cm x 31cm (width x height x depth)
– impedance – 4 Ohm – 16 Ohm
– year of production – 1973
– made in Japan
– weight – 17 kg