Akai AP-100C

The Akai AP-100C is a 2-speed semi-automatic belt-drive turntable produced in Japan around 1979. It is a refined version of the AP-100, featuring a robust construction and precision engineering suited for high-fidelity analog playback.

Technical Overview

Drive and Motor:

• Belt drive system powered by a 4-pole synchronous motor.

• Supports 33⅓ and 45 rpm speeds.

• Wow and flutter: 0.05% WRMS, indicating good speed stability.

• Signal-to-noise ratio: better than 53 dB.

Platter:

• 300 mm diameter aluminum die-cast platter designed for low resonance and smooth rotation.

Tonearm:

• Static balanced type with inside force canceller (anti-skating).

• Effective length: 220 mm.

• Overhang: 15 mm.

• Stylus pressure adjustment range: 0 to 4 g.

• Applicable cartridge weight: 5 to 8.5 g.

• Oil-damped arm lifter for smooth cueing.

• Offset angle: 22° 30’.

• Horizontal tracking error angle: ±2°.

• Shell weight: approximately 7 g.

• Removable headshell accommodating a wide range of cartridges.

Cartridge:

• Typically fitted with the Akai PC-100 moving magnet cartridge.

• Compatible with Akai APC-4 cartridge and APN-4 stylus for 4-channel stereo operation.

• Stylus options include the Akai RS-100 elliptical diamond stylus.

Construction and Dimensions:

• Plinth made from wood and particle board, finished in black or silver.

• Dimensions: approximately 440 mm (W) x 140–145 mm (H) x 350–355 mm (D).

• Weight: about 6.1 kg.

• Includes a transparent dust cover.

Operation:

• Semi-automatic with auto-return tonearm.

• Suitable for both stereo and 4-channel playback systems with appropriate cartridges and adapters.

Additional Features:

• Known for a heavy, solid plinth that reduces vibrations.

• Anti-skating adjustment ensures precise stylus tracking.

• Recently serviced units often come with new belts and feet.