WM-4

Sony WM-4 feature
WML ID #104
Manufacturer
Sony
Model
WM-4
Year
1982
Made in
Korea
Initial price
190 DM
Technical details, specifications
Battery
4AA
Battery life
8h (with 3)
Colors
red blue (dark) gray
Dimensions
88*142*36 mm (450 cm³)3D size
Weight
410 gr
Window
yes
Frame
plastic
Case
plastic
Carry
clip belt
Expandable
no
External compartment
no
Tape selector
Manual switch
Waterproof
no
Speaker
no
Frequency range
40-14000@1 40-16000@4 Hz
FMax output
2x30 mW
Functions
DC in
yes
Record by input
no
Record by int mic
no
Hotline mode
yes
Cue
no
Balance (L/R)
no
Phone type
1
Equalizer
no
Auto volume no
Auto reverse
no
Anti rolling
no
AMS no
Blank skip no
Logic control
no
Hold lock
no
Bass
no
Noise reduction
no
Radio
no
Remote control
no
Wireless headphone
no
Indicator
led
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.Via petervis

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Created
2021-08-14 13:22:21
Updated
2024-02-24 06:31:32
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