Description
Anti-Resonance Chassis
Superior isolation is achieved with a chassis designed to minimize the sonic effects of vibration and feedback. A low-noise DC servo motor drives a die-cast, high-inertia aluminum platter with special record mat via a rubber belt, resulting in stable speed and minimal wow and flutter.
Damped Platter
The underside of the platter is covered with strategically-placed elastomer damping material. Not only does this material drastically reduce the platter resonance (the RING when the platter is tapped) but due to the increased mass it also increases rotational inertia, improving speed accuracy. An undamped platter will ring like a bell, and that resonant energy is transferred through the vinyl back to the phono cartridge resulting in distortion.
Servo Speed Control
A sensor and motor control circuit measures the actual platter speed at the bearing and corrects it instantaneously in a closed-loop feedback system. This technique improves the Model 50’s wow and flutter specification by over 50% and speed accuracy by 66% over the simple belt drive and DC motor.
Precision Tonearm and Cartridge
The tonearm is a static-balance, straight-tube design with precision bearings, built-in anti-skate adjustment and removable bayonet-style headshell. A premounted moving-magnet cartridge takes all the guesswork out of setup and assures proper vertical tracking angle, tracking weight and azimuth adjustment right out of the box.
Specifications:
Drive System: Belt drive
Motor: DC motor
Selectable Speeds: 33⅓ and 45 pm
Motor Servo: Speed rotation and servo system
Rotation Speed Varia: +/-1%
Wow and Flutter: 0.10%
Signal-to-Noise Ratio: 67 dB or higher (A-weighted)
Signal-to-Noise Ratio: 60 dB or higher (unweighted)
Platter: Aluminum die-cast
Platter Diameter: 12.0 in / 300 mm
Superior isolation is achieved with a chassis designed to minimize the sonic effects of vibration and feedback. A low-noise DC servo motor drives a die-cast, high-inertia aluminum platter with special record mat via a rubber belt, resulting in stable speed and minimal wow and flutter.
Damped Platter
The underside of the platter is covered with strategically-placed elastomer damping material. Not only does this material drastically reduce the platter resonance (the RING when the platter is tapped) but due to the increased mass it also increases rotational inertia, improving speed accuracy. An undamped platter will ring like a bell, and that resonant energy is transferred through the vinyl back to the phono cartridge resulting in distortion.
Servo Speed Control
A sensor and motor control circuit measures the actual platter speed at the bearing and corrects it instantaneously in a closed-loop feedback system. This technique improves the Model 50’s wow and flutter specification by over 50% and speed accuracy by 66% over the simple belt drive and DC motor.
Precision Tonearm and Cartridge
The tonearm is a static-balance, straight-tube design with precision bearings, built-in anti-skate adjustment and removable bayonet-style headshell. A premounted moving-magnet cartridge takes all the guesswork out of setup and assures proper vertical tracking angle, tracking weight and azimuth adjustment right out of the box.
Specifications:
Drive System: Belt drive
Motor: DC motor
Selectable Speeds: 33⅓ and 45 pm
Motor Servo: Speed rotation and servo system
Rotation Speed Varia: +/-1%
Wow and Flutter: 0.10%
Signal-to-Noise Ratio: 67 dB or higher (A-weighted)
Signal-to-Noise Ratio: 60 dB or higher (unweighted)
Platter: Aluminum die-cast
Platter Diameter: 12.0 in / 300 mm