SONY PS-2310
¥ 38,800 (around 1974)
Commentary
This belt and drive player system emphasizes basic performance.
Uses 4-pole hysteresis synchronous motor with less vibration developed exclusively for the turntable.
In addition, it uses a double-side polished urethane belt.
A 31 cm aluminum die-cast turntable is used for the turntable.
Oilless metal is used for the bearing of this turntable and lubrication is not required.
It employs a newly developed universal type static balanced tone arm and is equipped with an inside force canceler, height adjustment mechanism and head shell adjustment mechanism.
In addition, arm lifter is mounted.
The cartridge is equipped with an IM type cartridge.
Since the shell is a standard type, the cartridge can be replaced.
The speed switching uses a lever system with a protective mechanism in the drive part to reduce vibration.
A newly developed special insulator is used to prevent howling and needle flying.
The output code uses a low-capacity type with less high-frequency loss.
The acrylic dust cover is removable and has a fleece top design.
Model Rating
| Type | Record player system |
| <Turntable portion> | |
| Turntable | 31 cm aluminum die cast, 1.5 kg |
| Motor | 4-pole hysteresis synchronous motor |
| Drive system | Belt drive |
| Number of revolutions | 33 1/3, 45 rpm |
| Start-up characteristic | Within 1/2 Rotation (33 1/3rpm) |
| Wow flutter | Within 0.07% WRMS |
| Signal-to-noise ratio | 48 dB or more |
| Tone Arm Section | |
| Tone arm | Static balanced universal tone arm |
| Effective length | 245mm |
| Total Length | 312mm |
| Overhang | 14mm |
| Tracking error angle | + / - 2 degrees |
| Offset Angle | 20 ゜ 30' |
| Needle pressure adjustment range | 0 ~ 3g (0.2g scale) |
| Inside force cancel range | 0 ~ 3g |
| Arm Height Adjustment Range | 5mm |
| Shell Weight | 10.5g |
| Usable cartridge weight | 4g ~ 12g |
| Cartridge tilt adjustment range | ± 13 ° |
| Cartridge Section | |
| Cartridge | IM Type |
| Frequency characteristic | 15 Hz to 22 kHz |
| Separation | 25dB(1kHz) 23dB(10kHz) |
| Output voltage | 4mV |
| Optimum load impedance | 50k Ω |
| Compliance | 10x10-6Cm / dyne (vertical, horizontal) |
| Vertical tracking angle | 15 ° |
| Needle pressure (optimum needle pressure) | 1.5g ~ 2.5g (2.0g) |
| Needle | 0.5 mil diamond needle |
| Weight | 6.8g |
| Exchange needle | ND-132GA |
| <General> | |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 9W |
| External dimensions | Width 490x Height 164x Depth 395 mm |
| Weight | 8.8kg |
| Attachment | 45 Rotation Adapter Tracking error adjustment gauge |
| Sold Separately | Replacement Shell SH-150 (¥ 1,200) Sony Oil OL-2KA |