2-Speed Direct-drive turntable with pitch control and illuminated strobe
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
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Dual Direct Drive Turntables
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.
Submitted by Kajtsu
I recently bought this TT and after start difficulties (steuer pimpel and some loose screws) I have to say I like it. It´s very very quiet even automatic mechanism is quiet. It keeps speed quite well (no quartz lock). It has original Shure V15/3 LM cartridge which is perfect partner to Dual 721 TT IMHO.
Submitted by anmpr1
My example of this turntable developed some speed control issues in 2004, so I gave it away. Not a bad run for a made-in-1977 machine (although my Technics SL-1100a is even older and still runs like new). I wish it, or something similar, were still made, as it was basically an unexceptional, straightforward deck. Quiet, ergonomic controls, and well designed tonearm with tight bearings. The counterweight design was, I guess, a pretty good damping compromise. Not the most sophisticated device ever seen on a tonearm, but for a reasonably priced integrated automatic deck, a nifty feature. My impression is that the earlier 701 was of better build, but if you can find a 704/721 in good working order I think it would be worth owning.