Turntable Details
Drive
Direct
Motor
DC
Wow & Flutter %
0.03
Rumble [dB]
-60
Speed
33, 45
Dimensions [mm]
Platter Material
Platter Diameter [mm]
320.0
Total Weight [kg]
Tonearm
Year Built
7.20
S-shaped
Platter Weight [kg]
1.50
Plinth Material
Price
Additional information
Key Features
Drive System: Direct drive with a high-torque DC servo motor.
Motor: DC servo motor providing extreme speed stability and increased torque, unaffected by temperature changes or voltage fluctuations.
Speeds: 33.33 and 45 rpm with a fine speed adjustment range of ±6%.
Platter: 320 mm die-cast aluminum platter weighing 1.5 kg with a moment of inertia of 240 kg/cm².
Wow and Flutter: Less than 0.03% WRMS.
Signal-to-Noise Ratio: More than 60 dB.
Tonearm: Statically balanced tonearm with an effective length of 222 mm and an overhang of 15 mm.
Tracking Force Range: 0 to 3 grams.
Inside Force Canceller: A unique mechanism to ensure uniform stylus pressure between the left and right groove walls.Dimensions: 456 x 375 x 149 mm (WHD).
Weight: 7.2 kg (though some sources list it as 9 kg).
Years of Manufacture: 1975 to 1978.
Made in: Japan.
Original Price: Approximately 200 USD, 698 DM.
Additional Details
The DD-20 features a special floating suspension system where the tonearm base and turntable assembly are mounted on a sub-chassis that floats within its base on special springs. This design isolates the tonearm from external vibrations and eliminates acoustic feedback.
The turntable is known for its clean and crisp sound reproduction, thanks to its precise motor control and robust build quality.
It is suitable for those seeking a vintage direct-drive model with good sound quality and reliability.