NAD C556 Manual belt-drive turntable

The result is a turntable that easily outperforms others at twice the modest asking price of the C 556. The secret to a good sounding turntable is to make a rock solid mechanical connection between the platter and the pickup stylus. Any play or vibration will either add resonant colouration (making the smack of a snare drum sound like a thud) or subtract the fine detail that is the primary benefit of well-played vinyl. To achieve this goal we use special materials and techniques. The three mechanisms that make up a turntable are the platter that supports and spins the record; the tone arm, which allows the stylus to accurately track the record; and the cartridge, which transforms the vibrations in the record groove into the electrical signals that are sent to your preamplifier.

The platter of the C 556 uses a special phenolic resin that is pressure moulded to create the ideal properties of being both massive and inert. The mass creates a flywheel effect that eliminates small, and very unmusical, speed variations called wow and flutter. The mass also rejects unwanted external vibrations, and combined with the extreme hardness of the phenolic material, suppresses vibrations in the audible range. This massive platter requires a precision low friction bearing to allow smooth and stable revolving motion. A special bronze body with a stainless steel ball bearing provides a point-perfect contact with the hardened steel shaft of the platter assembly. This is the ideal design for minimal friction, and a complete elimination of any play or ‘wobble.’ The bearing is firmly connected to the rigid and well-damped base that provides a rigid connection to the tone arm. A precision synchronous clock motor keeps the platter spinning at exactly 33 1/3 RPM and its own vibrations are carefully isolated from the platter by a synthetic rubber belt and from the base by rubber isolation mountings.

The tone arm must have the lowest possible mass while still maintaining a rigid, vibration-free connection to the record. To achieve this contradictory goal, the C 556 uses a hand built arm featuring an alloy tube and precision bearings at the gimbal pivot. A simple counter weight balance is combined with a magnetic anti-skate bias control to make for a friction-free pivot that allows the cartridge to operate in an ideal environment.

Features

- Pressure-cast phenolic resin platter with felt mat provides excellent speed stability and protects records from scratches

- Precision bronze and stainless steel ball bearing for smooth, quiet platter rotation

- Hand-built aluminum alloy tonearm with precision gimbal pivot bearings

- Includes pre-mounted Audio-Technica AT91BL moving magnet cartridge

- Magnetic anti-skate bias control

- Three anti-vibration feet

- High-torque synchronous-clock motor decoupled from base for reduced vibration transmission and better sound

- Manual operation with tonearm lift

- 33-1/3 and 45 rpm speeds

- Frequency range (with included cartridge): 20-20,000 Hz

- Channel separation (with included cartridge): 20dB at 1kHz

- Attached 41" RCA audio cable

17-7/16"W x 4-1/2"H (with dust cover down) x 14-1/4"D

Weight: 8.8 lbs.

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