Dual CS 721

3/31/2022

Author: Karsten Hein

Category: Gear & Review

Tag(s): Turntables

Go to comments

Watch this space. Full review coming up next...

Dual Company History

Christian and Joseph Steidinger started out as a manufacturer of clockwork and gramophone in the German Back Forest town of St. Georgen in 1907. The original company simply bore the family name, until they rebranded as Dual in 1927. The new company name was chosen in reference to their signature “dual-mode” power supplies in which they were true pioneers. Gramophones featuring these supplies, could either be powered by electricity or wound up for playback. Given their early success as a parts supplier, the Steidinger brothers began designing their own turntables.

During the German economic recovery that followed World War II, Dual became the largest producer of turntables in Europe. The German economy still enjoyed a price advantage over the rest of Europe and became known for high-quality once again. The Steidinger brothers had to hire up to 3,000 factory staff in order to keep up with the growing demand in entertainment devices in the world. Although Dual stretched the brand into other consumer electronics items, their turntables have remained iconic to this day.

The original Dual company went bankrupt in the early 1980s, following a decade of fierce competition from cheap and sophisticated imports from Japan. It was sold to the French electronics group Thomson SA. In 1988, the German company Schneider Rundfunkwerke AG bought Dual and then spun off the ‘Dual Phono GmbH’ to Alfred Fehrenbacher in 1993. Fehrenbacher produces Dual turntables 'Made in Germany', in the Black Forest town of St. Georgen, based on Dual’s original product lines until this very day.

Specifications

  • Turntable type: Fully automatic
  • Motor: direct drive, electronically controlled
  • Motor type: Dual EDS 1000-2
  • Speeds: 33.33 and 45rpm
  • Platter weight: 1.5 kg, aluminum die cast
  • Platter weight with rotor: 3.0 kg
  • Platter size: 305mm, dynamically balanced
  • Pitch control: +/- 10%
  • Wow and flutter: < 0.03%
  • Rumble: > 70dB
  • Tonearm: extended tubular, 2x damping
  • Tonearm effective length: 222mm, height adjustable
  • Cartridge: Shure V15 III (1973 - 1987)
  • Stylus pressure: 0.75 to 1.25g (1.0g)
  • Stylus type: Microline, elliptical diamond
  • Channel separation: 28dB @1kHz
  • Frequency range: 10 - 25,000 Hz
  • Cartridge inductance: 500 mH
  • DC resistance: 1,350 Ohms
  • Resistance: 47 kOhms
  • Output: 3,5 mV @1kHz
  • Cartridge weight: 6.0 g
  • Turntable Weight: 7.8 kg
  • Dimensions: (W) 424 mm x (H) 150 x (D) 368 mm
  • Country of manufacture: Germany
  • Year(s): 1976 - 1979