Akai AP-100

The Akai AP-100 is a 2-speed semi-automatic belt-drive turntable produced in Japan around 1979, known for its solid build and reliable performance.

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.

• Arm lifter is oil damped.

• Offset angle: 22° 30’.

• Horizontal tracking error angle: ±2°.

• Shell weight: approximately 7 g.

Cartridge:

• Typically fitted with Akai PC-100 tri-pole induced magnet cartridge.

• Stylus: 0.65 mil diamond.

• Output voltage: 4 mV (1 kHz, 5 cm/s).

• Channel separation: more than 20 dB (1 kHz).

• Recommended stylus pressure: 2 g.

• Compliance: 10 x 10^-6 cm/dyne (100 Hz).

Construction and Dimensions:

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

• Weight: about 6.1 kg.

• Available in black or silver finishes.

• Includes a transparent dust cover.

Additional Features:

• Semi-automatic operation with auto-return tonearm.

• Suitable for 4-channel stereo operation with appropriate cartridges and adapters.

• Accessories include 45 rpm adapter and alternate capstan (not included in some regions).

• Power requirements vary by region (100-240 V, 50/60 Hz).