Dual CS 701 specifications

Category : Record player

Brand : Dual

General

connectors

Tech nical data

special features

manufacturer: Dual
model: CS 701
type: record player
year of construction: 1973 - 1976
Made in Germany
color: walnut, lacquer finish
power consumption white: 2.5 watts
dimensions: 420 x 147 x 365 mm (W x h x d)
weight: 10.9 kg
factory price approx.: 900 DM

outputs: 1 (5-pin DIN connector)

drive: Direct (EDS-1000)
speed: 33 1/3 and 45 rpm
constant velocity fluctuations: ± 0,03 %
Rumple-to-noise ratio: > 50 dB
Rumple-Noise ratio: > 70 dB
plate:
- diameter: 305 mm
- weight: 2.9 kg
- moment of inertia: 460 kgf / cm2
mode of operation: fully automatic
Pitch: ± 8 %
tonearm : rigid, extra-long aluminum tube tonearm in super flat cardanic four-point-to-peak storage
- arm-balance weight with two-fold more effective vibration damping (2 x Anti-cavity)
- Effective tonearm length: 222 mm
- offset angle: 25° 20'
- the Tangent ial tracking angle : 0,16°/cm
- tonearm bearing friction (based on the sample peak)
  - Vertical: < 0.007 to p
  - Horizontal: < 0,015 p
- tracking force from 0 to 3 p operating continuously adjustable with 1/10 p-calibration in the range of 0-1,5 p safe from 0.25 p power
- pickup head (carrier system) removable, suitable for all Cartridges with 1/2"mount and a weight of 2 to 10g (incl. Mounting material)
- Adjustable overhang : 5 mm Pickup system

Diameter: 305 mm

Weight: 2.9kg

Moment of inertia: 460 kp / cm2

Tonearm balance weight with double effective Vibration Damping (2 x Anti-resonator)
Effective tonearm length: 222 mm
Angle of curvature: 25° 20'
Tangent ial track error angle : 0.16°/cm
Tonearm bearing friction (relative to the scanning tip)
- Vertical: < 0.007 p
- Horizontal: < 0.015 p
Contact force from 0 to 3 p continuously adjustable with 1/10 p calibration in the range of 0-1.5 p reliable operation from 0.25 p Contact force
Pickup head (system carrier) removable, suitable for accommodating all pickup systems with 1/2" mounting and a dead weight of 2 to 10g (incl. Mounting material)
Adjustable overhang : 5 mm Pickup system

Vertical: < 0.007 p
Horizontal: < 0.015 p

Pickup system: Shure V15 Type III (compared to CS 70 7ee6bd4e01033ee909e058b5c60f7a7d M20E)
hood can be placed in any position (CS 70 only "close", "open" or completely "remove"). Otherwise there are no differences

The Dual 701 is the first dual HiFi turntable with direct drive. The device is generally considered to be rather susceptible to malfunctions, many of the devices show malfunctions from greatly increased speed to total failure. * This could be due to the complicated electronics that were used here for the first time.
Copies that still work today will probably continue to do so for a long time, since higher-quality capacitors were installed from a certain point in time. So it is not to be discouraged from a functional specimen.
It is worth mentioning the particularly heavy turntable, which guarantees excellent synchronism, the artistic tonearm and the two high-quality pickup systems, whereby the Shure V15 III stands out positively.
Furthermore, the device has a strobe light, which reflects the strobe strips applied to the underside of the turntable into a small round window. By means of an obliquely ground lens located in front of it, it is possible to "zoom" from the stripes for 45 revolutions / minute to those for 33 revolutions / minute.
Both speeds can be individually fine-tuned with separate controllers. This is not a mechanical fine adjustment, as in previous models, but an electronic one with potentiometers.
As a counterweight, a "double" weight is installed here, a so-called anti-resonator, which is designed to compensate for the smallest vibrations of the tonearm.
The device is completely silent during operation due to the direct drive, all other technical values are also excellent. Further optimization of these values is not necessary from a rational point of view.
The turntable starts up a little slowly despite the direct drive, but this is not surprising with a weight of the drive unit of 4.2 kg.
If you want a dual with direct drive, but do not want to give up the good build quality of the previous models, you should opt for the 701. Although the successor models with the initial digit 7 are characterized by the same or even better technical characteristics, they leave some wishes open in the haptic field. For example, almost all parts of the 701 are made of metal. In addition to frames in black, white and imitation wood, it is also available in a real wood frame (walnut).