2-Speed Direct-Drive Turntable (1977-1979)
The Dual 721 is a fully automatic, single play, direct drive successor to the quietest turntable ever made.
Independent test reports on the electronic direct-drive Dual 701 were extraordinary. Their results are still pertinent since the CS 721 has the same drive system.
Hirsch-Houck Labs found the wow level 'essentially at the residual level of our test record', and the Feldman Lab report in FM Guide was able to detect 'no flutter whatsoever'.
The CS 721 tonearm has a number of new developments that contribute significantly to fine tracking performance.
Most notable of these is the tonearm base which has a vernier height adjustment for setting the tonearm parallel to the record with any size cartridge.
This eliminates the added mass of cartridge spacers otherwise needed to achieve precise vertical tracking angle. It also makes cartridge mounting and interchange more convenient.
Motor: EDS 1000-2 electronically controlled direct drive system
Speeds: 33.33 and 45rpm
Platter: 1.5kg, 305mm, dynamically balanced
Pitch control: 10%
Wow and flutter: <0.03%
Tonearm: extra long tubular tonearm with double acting vibration damping
Tonearm effective length: 222mm
Stylus pressure: 0 to 3g
service manual (corrections) - dualcan
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Dual 721 / CS721 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.