SANSUI 551
¥ 65,000 (released in 1974)
Commentary
FM/AM receiver with improved basic performance in both the audio and tuner sections.
The power stage uses a SEPP quasi complimentary service circuit.
A high-gain IC is used for the equalizer.
Various characteristics have been improved by adopting a dual gate MOS FET in the FM front-end section.
Equipped with a loudness, high filter and FM muting switch.
Model Rating
| Type | FM/AM Receiver |
| Effective output (both channel operation) | 17W + 17W (8 Ω) |
| Music Power (IHF) | 70W (8 Ω) |
| Total harmonic distortion factor | Not more than 0.8% |
| Cross modulation distortion factor | Not more than 0.8% |
| Power Band With | 25 Hz to 30 kHz |
| Frequency characteristic | 15 Hz to 30 kHz |
| Input Sensitivity / Impedance | Phono : 2.5mV/50k Ω Aux, Tape : 150mV/50k Ω |
| Sensitivity | FM : 2.5 μ V (IHF) AM : 53dB/m (bar antenna) |
| External dimensions | Width 424x Height 135x Depth 285 mm |
| Weight | 8.6kg |