Sony PS-2100 (1970)

A belt-driven turntable from 1970 with a universal tone arm and a high-compliance MM cartridge.

Overview

The Sony PS-2100 is a record player / turntable produced in 1970. The tone arm is universal, so cartridges can be swapped freely. It is a newly developed static balanced pipe arm with excellent tracing performance. The cabinet has a walnut finish, and the dust cover is smoked plastic. A synchronous motor keeps playback stable. There is also a protective mechanism that prevents belt damage if you change speeds while the turntable is not rotating.

Specifications

Type	Record player system
Turntable	30 cm Aluminum Die Cast
Motor	4-pole synchronous motor
Drive system	Belt drive
Number of revolutions	33 1/3, 45 rpm
Wow flutter	0.1% RMS or less
Tone arm	Static balance type
Effective length	215mm
Overhang	15mm
Needle pressure adjustment range	0 ~ 3g, 0.5g step
Shell	Universal plug-in system
Weight of attachable cartridge	4g ~ 14g
Weight of attachable cartridge (with accessory)	Up to 18g (When Using Replacement Weight CW-44)
Cartridge	MM Type (VM-21P)
Frequency characteristic	20 Hz to 20 kHz
Separation	20dB
Load impedance	50k Ω
Optimum needle pressure	3g
Needle	0.7 mil diamond needle
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	14W
External dimensions	Width 436x Height 156x Depth 356 mm
Weight	5.5kg
Attachment	45 Rotation Adapter Sold Separately
Shell accessory	SH-120 (¥ 1,000)
Replacement Needle	ND-125P (¥ 1,500)
Replacement Weight	CW-44 (¥ 1,500)

Design

The PS-2100 uses a belt drive and a 4-pole synchronous motor, which holds rotation constant regardless of voltage fluctuations. The platter is aluminum die-cast for stability. The tone arm is a static balance type with a universal plug-in shell on a 4-pin standard, so changing cartridges is easy. High-compliance MM type cartridges are used. The protective device stops belt damage when speeds are changed while the turntable is not rotating. The cabinet is walnut finish and the dust cover is smoked plastic.

Market

The Sony PS-2100 had an original price of ¥21,000 in 1970. Replacement parts were sold separately: the stylus (ND-125P, ¥1,500), the shell (SH-120, ¥1,000) and the counterweight (CW-44, ¥1,500). A replacement stylus is available.

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