WM-4

Sony WM-4 feature
WML ID #104
Manufacturer Sony
Model WM-4
Year 1982
Made in Japan
Initial price 190 DM
Technical details, specifications
Available colors gray red blue dark
Dimensions 88*142*36 mm (450 cm³) 3D size
Weight 410 gr
Window yes
Carry Clip
Expandable no
External compartment no
Waterproof no
Speaker no
Frequency range 40-16000@4 Hz
FMax output 2 mW
Functions
DC in yes
Record by input no
Record by int mic no
Bass no
Noise reduction 0
Radio no
Description

This second-generation budget model replaced the WM-1. Offering similar facilities, it was three quarters of the size.

The WM-4 was an early Walkman manufactured in Korea by the Sony Corporation in approximately 1984. This was a cheaper version for the mass market and looked similar to the earlier WM-F1, which had a built-in FM tuner, but with a manufacturing origin of Japan. The WM-4 was available almost all over the world and became an instant success due to the robust tape transport mechanism (MT-WM4-05) originally designed for a dictation machine. It was a very loud unit with a power output of 30 mW per channel, and sported a pair of jack sockets so that two people could listen at the same time. As with all of these early units, the down side was with the power hungry audio amplifier chipset that required four "AA" sized dry cells providing approximately four hours of use. This unit is very much in the same league as the Sanyo M3330 and the Sanyo M4440, although in many ways the Sanyo surpasses it with a better sound and build quality.
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Created 2021-08-14 13:22:21
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