the home of the turntable

Library / Dual

Dual 621

2-Speed Automatic Direct-Drive Turntable (1977-1978)

review this turntable (2 reviews)

dual cs 621
Dual 621


Provision for reproduction of CD4 records on the Dual 621 has already been made by the use of low capacitance tonearm wiring.

For four channel reproduction of CD4 records in combination with a CD4 demodulator a special cartridge will still be necessary; it's frequency range should extend to at least 45kHz.

Special CD4 cartridges are not always suitable for reproduction of stereo records, we recommend playing stereo records only with stereo cartridges.

Features include pitch control and torsionally rigid tubular aluminium tonearm.


Drive: EDS 500 electronically controlled direct drive system

Speeds: 33.33 and 45rpm

Wow and flutter: 0.06%

Platter: 304mm 1.3kg non-magnetic

Tonearm: torsionally rigid aluminium tubular tonearm

Rumble: 65dB

Effective length: 222mm


instruction/owners manual  English Deutsch Francais

packing instructions  English

service manual  English - OceanMang


the new dual turntables

united audio

Please login or register a free account in the forum to download files

If you have additional documentation please consider donating a copy to our free archive.

NOTE To view PDF files the latest version of the official acrobat reader is required.

Dual 621 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 Dual.