SANSUI SR-3030
¥ 35,700 (released in August 1968)
Commentary
A record player that thoroughly pursues the player's basic characteristics in terms of sound quality, function, and performance.
The mechanism part adopts belt drive system of double rim turntable.
The direct drive mechanism by the belt suppresses the generation of grounders and noise and realizes smooth rotation.
In addition, a newly designed large condenser starter, 4-pole hysteresis synchronous motor is used for the motor to achieve stable rotation.
The belt uses a polyurethane endless belt with a high precision grinder finish and uniform thickness to a value of micron order.
In addition, it is equipped with a belt protection mechanism, and when the power is off, the speed switching mechanism is automatically interlocked to prevent deformation of the belt.
Equipped with an inside force canceler, it can return the force that is pulled to the center when the record is rotated, and it can always trace the record in a normal state.
Teflon is used for the center spindle, and by making it longer, the horizontal vibration of the turntable is reduced.
The arm uses a static balanced pipe arm with direct needle pressure reading.
Sensitivity has been improved by designing the weight of the arm moving part to minimize friction resistance and inertial efficiency.
The cartridge uses a newly designed Induced Magnet Type.
It uses a linear lightweight cantilever and is designed for high compliance with a small mass of moving parts and a good stretch of high frequency.
It comes with a lightweight spare shell that solves the strength and resonance point by using a special light alloy and bending the edge downward as a reinforcement rib. Since it uses European standard connector, it can be used for other arms.
By adopting an oil dump arm, quiet operation is realized.
Uses a rubber cushion to prevent howling.
Uses a special rubber sheet filled with anti-static agent.
This sheet is used with a soft edge to prevent the record from being scratched.
Vibration is reduced by the turntable mechanism are die-cast to reduce vibration.
The cabinet is made of walnut.
Model Rating
| Type | Stereo record player |
| Method | 2-speed belt drive system |
| Turntable | 31 cm φ, 1.3 kg, Aluminum Alloy Die-cast |
| Power supply motor | Capacitor-actuated hysteresis synchronous motor |
| Rated speed | 33 1/3, 45 rpm |
| Rotation switching system | Belt changing mechanism by push button |
| Signal-to-noise ratio | 45 dB or more |
| Wow and flutter | Not more than 0.09% |
| PU Arm | Static balanced non-resonant pipe arm |
| Tracking error | + / - 1 ゜ |
| Needle pressure | 0g ~ 2.5g (read directly in 0.5g steps) |
| Cartridge | IM (Induced Magnet) Type |
| Frequency characteristic | 15 Hz to 20 kHz |
| Output balance | 1.5 dB or less |
| Channel separation | 30 dB or More (1 kHz) |
| Output voltage | 5mV |
| Standard load resistance | 50k Ω |
| Standard needle pressure | 1.5g ~ 2g |
| Needle tip compliance | 17x10-6cm/dyne |
| Needle tip | 0.5 mil, diamond needle |
| Attachment | Delay oil -type arm lifter linked to the power switch Needle pressure direct reading weight Cartridge self-weight compensation sub-weight Plug-in spare head shell Inside force canceler |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 20VA |
| External dimensions | Width 520x Height 178x Depth 375 mm |
| Weight | 8.2kg |