SANSUI 331
¥ 39,800 (around 1977)
Commentary
This is an easy-to-use FM/AM receiver that combines a high-sensitivity FM/AM tuner section and an audio amplifier focusing on sound quality into a compact design.
The power amplifier section uses a high-performance hybrid IC with sufficient power and low distortion characteristics.
Equipped with tone control with stable operation and straightforward characteristics.
The FM front-end uses a high-sensitivity dual FET to catch weak radio waves with excellent high-frequency characteristics.
Equipped with tape monitor switch and loudness switch.
Equipped with speaker switching switch.
Model Rating
Type | FM/AM stereo receiver |
Amplifier Unit | |
Effective power | 12W + 12W (double-channel operation, 40 hz to 20 khz, 8 Ω) |
Total harmonic distortion factor | 1% or Less (Rated Output) |
Cross modulation distortion factor | Less than 1% (70 Hz : 7 kHz = 4 : 1 SMPTE) |
Output bandwidth | 20 Hz ~ 30 kHz (IHF, 8 Ω) |
Frequency characteristic | 25 Hz to 30 kHz |
Hum and noise | 70dB(Phono) 80dB(AUX) |
Input sensitivity | 2.5mV(Phono) 150 mv (AUX, Tape) |
Tuner Section | |
FM sensitivity | 2.5 μ V (IHF) |
Capsule ratio | 1.5 dB or less |
Selectivity | 60 dB or more |
AM sensitivity | 50dB/m (1 kHz, bar antenna) |
<General> | |
External dimensions | Width 442x Height 125x Depth 339 mm |
Weight | 6.7kg |