Turntable Details
Drive
Direct
Motor
Wow & Flutter %
0
Rumble [dB]
0
Speed
33, 45
Dimensions [mm]
Platter Material
Methacrylate/lead
Platter Diameter [mm]
Total Weight [kg]
Tonearm
Year Built
20.9
Linear
1991
Platter Weight [kg]
3.2
Plinth Material
Price
£4,757
Additional information
The Goldmund ST4 is a two-speed, direct-drive turntable system. It's often considered a later version of the Goldmund Studio.
Key Features and Technical Specs:
Drive System: Direct drive with quartz-regulated speed control.
Speeds: 33 1/3 and 45 rpm.
Resonance Frequency of Suspension: 3 Hz.
Platter Construction: Methacrylate with peripheral lead inserts.
Platter Weight: 7 lbs (3.2 kg).
Weight: 46 lbs. (20.9 kg), including tonearm.
Dimensions: 20 in. W x 8 1/8 in. H x 20 in. D (51 cm x 22 cm x 51 cm).
Tonearm: Linear-tracking, servo. The ST4 is fitted with the T4 Belt-driven automatic radial tonearm.
Tracking Error: Maintained within ±0.1° by servo and infrared sensor.
Effective Length: 8 1/16 in. (20.5 cm).
Damping: Adjustable, fluid.
Main Resonance: 10 to 14 Hz, depending on cartridge.
Vertical Tracking Angle: Adjustable.
Cartridge Weight Range: 4 to 20 grams.
The ST4 turntable uses a direct-drive motor with a speed servo system controlled by a quartz reference oscillator and associated electronic drive circuitry. The motor is fastened directly to the main platform. The platter is made of methyl methacrylate and has counterweights around its periphery to increase inertia and ensure rotational stability