SANSUI SM-32
¥ 43,600 (released in 1962)
Commentary
A top-of-the-line stereo amplifier that can receive stereo broadcast transmission radio, FM broadcasts, and shortwave broadcasts from abroad.
Transistors and diodes, which were rare at that time, were also adopted.
The power amplifier uses 6BM8 fixed bias system, and the output transformer uses an Orient Core.
A transistor for industrial instrumentation is used in the preamplifier section.
This prevents hum and noise, and is equipped with a temperature compensation circuit to enable stable operation.
Silicon diodes are used in the rectifier circuit.
As a result, stable operation is maintained without any loss of heater power or temperature rise due to rectification.
It is equipped with a rumble filter and a scratch filter that cut motor grounders and record scratch noise.
It is also equipped with a loudness control, a tape monitor terminal and a stereo / mono indicator.
Model Rating
| Type | 3-band stereo integrated amplifier with FM | ||
| Maximum power output | 16W-16W | ||
| Frequency characteristic | 30 Hz to 70 kHz 1 dB or less | ||
| Distortion factor | 1% or Less (at Output 13W) | ||
| Gain (input required for output 12W) | Phono MAG : 72 dB, 3.5 mV Phono X-TAL : 45 dB, 82 mV VTape, MIC : 75 dB, 2.5 mV AUX : 50 dB, 44 mV |
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| Receiving frequency | FM : 80 MHz ~ 108 MHz (CHAN-1) AM : 535 kHz to 1605 kHz (CHAN-1, 2) Short Wave Section : 3.5 MHz ~ 10 MHz (CHAN-1) |
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| Synchronous display | Using Magic Eye (for both AM and FM) | ||
| Accessory circuit | Loudness control Rumble filter Scratch filter Tape monitor terminal (slide switch operation) |
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| Semiconductors used |
Germanium Diode : OA79x4 Silicon Diode : SE-0. 5Ax2 Selenium Rectifier : T. C0. 2P11/2x1 |
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| Power supply voltage | AC100V/117V/240V, 50Hz/60Hz | ||
| Power consumption | 120VA | ||
| External dimensions | Width 452x Height 325x Depth 148 mm | ||
| Weight | 14.4kg |