The Sony WM-SP85, introduced in the late 1980s, was a flagship portable stereo cassette player that blended top-notch sound quality, robust build, and innovative features. A staple of Sony's Walkman series, it was heralded as a premium personal audio experience.
Cassette tapes, the dominant format of the time, offered users the unique advantage of recording and saving their favorite tunes. The WM-SP85 was primed to capitalize on this, offering top-tier performance in a compact, portable package.
Design and Build Quality
The WM-SP85 boasted an elegant, sturdy design typical of Sony's high-end Walkman models. Its sleek, all-black appearance with prominent, user-friendly buttons exuded a sense of durability and style.
At 7.2 inches (183mm) long, 4 inches (102mm) high, and 1.5 inches (38mm) deep, the WM-SP85 was slightly larger than other Walkman models, but its weight—about 1.3 lbs (600g)—made it a comfortable fit in a bag or on a shoulder strap.
High-Quality Components
The device's internal components were top-tier, featuring dual direct-drive inductive motors for smooth tape transport and a high-power headphone amplifier. The WM-SP85 also came with optional noise reduction technology, reducing background hiss and enhancing audio clarity.
To protect against dust and dirt, the WM-SP85 featured a unique, protective cover for the cassette opening. This cover, activated by a switch, also had a built-in lock to prevent accidental playback.
Advanced Features
Sony equipped the WM-SP85 with several innovative features. One was the 'Manual Reverse/Forward' function, allowing users to quickly rewind or fast-forward through tapes at the touch of a button. Another was the auto-reverse capability, which automatically switched sides when one ended.
The ' Niederschrift' function was also present, enabling users to record directly from other audio devices via auxiliary input. Plus, the WM-SP85 sported a convenient integrated Dolby B/C system for loud, rich sound.
Sound Quality and Performance
The WM-SP85 was renowned for its superior sound quality, due in part to its highly sensitive microphones for recording. Two pc-board-mounted, high-quality microphones delivered excellent recording capabilities, ideal for capturing live performances or important moments.
In terms of playbacks, the high-grade headphone amplifier ensured crystal-clear, robust audio, even through high-impedance headphones. Additionally, the WM-SP85 boasted an impressive signal-to-noise ratio of around 65 dB; a testament to its noise-reduction technology.
Recording Capabilities
The WM-SP85 offered several recording modes, including 'Manual' for precise tape positioning, 'Counter Record' for adding timecodes, and 'Memo' for quick, simple recording.
Its high-sensitivity microphones could capture a broad frequency range (20Hz-20kHz), making the WM-SP85 a versatile recording device for various purposes, like recording lectures, interviews, or personal voice notes.
Battery Life and Power
Powered by six AA-size alkaline or nickel-metal hydride batteries, the WM-SP85 offered impressive battery life. Listening at moderate volume, users could enjoy up to 30 hours of playback—a testament to Sony's advanced power management technology.
For times when batteries were low, the WM-SP85 included an 'ECO Mode', whichextended playtime by slightly reducing volume and power consumption. Alternatively, users could employ the 'Battery Save' function to automatically shut off the device after a set period of inactivity.
In today's digital age, the Sony WM-SP85 may seem like a relic, but its blend of robust design, innovative features, and superior sound quality made it a timeless classic. For music lovers and recorders alike, the WM-SP85 offered a top-notch portable cassette experience that's still celebrated today.