SANSUI SR-717
¥ 69,800 (released in 1974)
Commentary
A record player with a direct drive system.
The drive motor is equipped with an independently developed 20-pole brushless DC servo motor.
Uses a self-position detection system that enables accurate rotation.
High-durability precision special alloy is used for the bearing part.
Knife edge method (vertical direction) is adopted for the arm support part, and one point support method is adopted for the horizontal direction.
A solid board is used for the cabinet.
Model Rating
| Type | Record player |
| Turntable | 30cm |
| Motor | 20 Pole Brushless DC Servo Motor |
| Drive system | Direct drive system |
| Wow flutter | Not more than 0.035% |
| Number of revolutions | 33 1/3, 45 rpm |
| Speed adjustment | + / - 4 per cent |
| Arm | Static balance type needle pressure direct reading type Knife edge / one point support system Inside for scan seller Lateral balancer |
| Signal-to-noise ratio | 60dB |
| External dimensions | Width 508x Height 185x Depth 394 mm |
| Weight | 13.1kg |