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Sony TTS-4000

Professional 2-Speed Direct-Drive Motor Unit (1970)

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Sony TTS-4000


The Sony TTS-4000 is a professional, 2-speed, direct-drive motor unit designed for use with the PSE-4000 plinth system.

Motor speed is converted into AC signal by means of a direct coupled frequency generator.

The servo amplifier compares the signal against a very stable DC reference voltage, and then controls the collector-emitter impedance of power transistor.

Any error in motor speed results in a correction voltage supplied to the motor.


Type: direct drive

Speeds: 33 and 45rpm

Speed adjustment: 3%

Wow and flutter: less than 0.03% RMS

Signal to noise ratio: greater than 67dB

Motor: AC servo controlled motor

Dimensions: 343 dia x 145.6mm

Weight: 12.5kg


service manual  English

brochure  Nihongo - bfried68

instruction/owners manual  Nihongo - bfried68

dimensions  Nihongo - bfried68

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Sony Direct Drive Turntables

Sony TTS-4000 / TTS4000 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. The PDF files are provided under strict licence. Reproduction without prior permission or for financial gain is strictly prohibited. This website is not affiliated with or sponsored by Sony.