WM-SX77

Sony WM-SX77 feature
WML ID #94
Manufacturer
Sony
Model
WM-SX77
Series
Field
Year
1991
Made in
Japan
Initial price
29000 ¥Today 224 $
Technical details, specifications
Battery
gumstick EXT1C
Battery life
3.5h (with 5)
Colors
gray (matte)
Dimensions
113.8*89.8*30.5 mm (312 cm³)3D size
Weight
245 gr
Window
yes
Carry
clip
Expandable
no
External compartment
yes
Head
EX Amorphous
Tape selector
Automatic
Waterproof
drop proof
Speaker
no
Frequency range
20-18000 Hz
FMax output
5x2 mW
Functions
Record by input
no
Record by int mic
no
Hotline mode
no
Cue
no
Balance (L/R)
no
Equalizer
no
Auto volume no
Auto reverse
yes
Anti rolling
yes
Blank skip no
Logic control
yes
Hold lock
yes
Bass
so-exdbb
Noise reduction
Dolby B NR
Radio
no
Remote control
yes
Wireless headphone
no
Description

Rugged construction and excellent waterproof performance long lost outdoor series walkman

A waterproof Walkman that supports JIS-proof pine shapes.

The main body and remote control are waterproof, and the earphones are drip-proof (JIS drip-proof type II), so they can handle even a little rain, snow, or splashes.

The cabinet uses a resin material with a thickness of 4.0 mm (6.7 times compared to WM-EX80), and the cassette lid uses aluminum metal with a thickness of 1.0 mm (1.3 times compared to WM-EX80). In addition, the cassette lid is a center lock type, and by adopting a large buckle mechanism made of aluminum die-cast, a structure that is resistant to dropping and pressure.

The sound shaking guard mechanism is adopted and the sound shaking caused by the vibration such as when walking is suppressed. This mechanism is designed by analyzing the dynamic characteristics against vibration from the aspects such as the moment of inertia of the flywheel and the stability of the motor.

The included battery case is Walkman's first C-size battery specification, and when used in combination with a rechargeable battery, it achieves continuous playback for approximately 33 hours (when using alkaline batteries). This battery case has JIS-proof specifications when it is attached to the main unit.

A remote control clip with a shape that can be attached to thick clothes is used.

Sound leakage reduction headphones are included as earphones. This earphone adopts a teardrop shape which is a new shape that matches the shape of the ear, and reduces sound leakage from the gap between the ears. In addition, unnecessary sound leakage is reduced by making the opening where the sound comes out only in the ear hole by the silent cap. This has reduced sound leakage by 70% compared to the past.

The EX amorphous head is adopted as a head part. In addition to using amorphous as the material for this head, the EX mechanism by a special tape guide that keeps the angle between the head and the tape constant is adopted.

The Dolby B type is included as a noise reduction system.

The EX DBB (Dynamic Bass Boost) circuit is carried and the bass of 50Hz can be emphasized up to about 16 times.
DBB automatically adjusts the emphasis method according to the position of the volume knob at that time. Furthermore, EX DBB prevents the delicacy of weak sound from being lost by changing the amplification amount linearly according to the change in the volume of the original sound.

Equipped with an A-side / B-side notification function, you can check which side of the tape, A-side or B-side, is being reproduced and what kind of running condition it is in.

Equipped with a 10-minute quick charge function, it can be charged up to 50% of the full charge in 10 minutes, and can be fully charged in 30 minutes. It automatically switches between quick charging and normal charging according to the remaining battery level.Via Audio Database (edited)

Documents
sony_wm-sx77_manual.pdf3035 KB
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Additional notes
Quick charger
Created
2021-07-10 18:46:34
Updated
2024-06-14 15:51:33
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