Precision and performance with the Dual 601.
Single-play belt-drive automatic turntable
Dual's first medium-priced single-play turntable is also the first Dual to use belt drive. The drive system consists of an 8-pole synchronous motor, developed especially for the 601, and a precision belt which runs directly from the drive shaft to a flywheel rotor beneath the platter. The motor's absolute speed constancy, its exceptional smoothness, and the isolation of the platter from the motor combine to reduce wow, flutter and rumble to an insignificant level.
The 601 also features a special anti-skating calibration for CD-4 as well as for conical and elliptical styli.
Other unique features and capabilities include;
low capacitance tonearm leads for full compatibility with CD-4 cartridges;
a 1" dynamically balanced platter, die-cast of non-magnetic alloy;
continuous-play selector which allows the tonearm to play a record once or repeatedly;
and flawless tracking at as low as 0,25 gram.
Specifications
Drive: Dual 8-pole synchronous motor through precision flat belt to platter base.
Platter: Non-magnetic, dynamically balanced, detachable
Diameter : 305 mm
Weight: 1,3 kg (Platter with flywheel drive, 2,1 kg)
Speeds: 33-⅓ and 45 rpm
Pitch Control Variation: Adjustment range of approx. 1 semitone (approx. 6%) at both platter speeds
Speed Control (Monitoring): with illuminated stroboscope for all platter speeds, adjustable to 50 or 60 Hz
Illuminated Strobe Sensitivity for Speed Deviation of 0,1%:
3 bars/min at 50 cps
3,6 bars/min at 60 cps
Wow and Flutter: less than ±0,08% (According to DIN 45 507)
Rumble (according to DIN 45 500)
Unweighted : better than 42 dB
Weighted : better than 63 dB
Tonearm: Torsion-resistant tubular aluminium tonearm in self-adjusting pivot bearing
Effective Length of Tonearm: 222 mm
Offset Angle: 25° 20'
Tangential Tracking Error: 0,16 degree/cm
Tonearm Bearing Friction (related to stsylus tip)
Vertical : less than 0,07 mN (0,007 p)
Horizontal : less than 0,16 mN (0,016 p)
Stylus Pressure: 0 - 30 mN (0 - 3 g). Infinitely variable with 1 mN (1/10 g) calibration from 0 - 15 mN (0 - 15 g) operable from 2,5 mN (0,25 h) stylus pressure up
Cartridge Holder: removable, accepting any cartridge with 1.2" mounting and weight from 2 to 10 g (including mounting hardware)
Adjustable Overhang: 5 mm
Power Requirements: 110 - 130 V or 220 - 240 V, AC 50/60 Hz
Power Consumption: approx 10 Watts
Dimensions (W x H x D): 420 x 148 x 365 mm
Weight: 7,6 kg
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