Akai 202D-SS (c. 1975)

A 4-channel reel-to-reel tape deck with 3-motor drive and dual-speed capability, designed for surround stereo recording and playback.

Overview

The Akai 202D-SS is a 4-channel reel-to-reel tape deck made for quadraphonic audio recording and playback. It supports both 4ch and 2ch recording, with 2-channel Oatley verse playback capability. Built around a 3-head system and a 3-motor mechanism using oil circulation type oil-free motors, it offers precise tape control. The unit includes a tape selector and automatic stop function, and operates at two speeds: 19 cm/s and 9.5 cm/s.

Specifications

Tape speed	19cm/s and 9.5cm/s
Recording/playback capabilities	4ch/2ch recording and 2ch Oatley verse playback are possible
Frequency characteristic	30 Hz to 23 kHz
Wow and flutter	0.06% WRMS
Signal-to-noise ratio	58dB
External dimensions	Width 391 x Height 442 x Depth 231 mm
Weight	18kg
Original price	¥135,000 (around 1975)

Design

The 202D-SS uses a 3-head configuration and a 3-motor mechanism with oil circulation type oil-free motors for stable tape transport. It includes a tape selector and automatic stop mechanism for operational convenience.

Market

Listings from recent years show units selling between $150 and $859.75, with common issues including tape transport failures and degraded playback heads due to age. Service manuals are available online to support maintenance and repair.