Casio PT-90

The Casio PT-90 is a compact keyboard with a retro design, featuring 32 mini keys and available in two colors: white and black. Its casing resembles the famous Casio SK-1, with a similar design and lightweight structure that makes it easily portable. Unlike other models, it lacks an audio output: sound is emitted only from the built-in speaker, located on the left side of the instrument.

Main Features

• 32 mini keys in white for musical performance.
• Colorful buttons in green, yellow, orange, and red, used to manage rhythm patterns and other functions.
• Instrument selection via a lever, offering 8 sounds:
  • Piano
  • Harpsichord
  • Vibraphone
  • Pipe organ
  • Jazz organ
  • Flute
  • Strings
  • Synth sound
• Casio Chord function, activated through a dedicated on/off lever.
• Rhythm selection via another lever, with buttons to adjust tempo and start/stop the rhythm.
• Monophonic, playing one voice at a time.
• Power: Operates with 5 AA 1.5V batteries or an optional external adapter.
• Main controls: A volume lever and a power switch to turn the instrument on or off.

Sound Quality

The sound produced by the Casio PT-90 is warm and intriguing, making it ideal for lo-fi enthusiasts and those seeking tones reminiscent of the vintage ’80s vibe. However, one of the main drawbacks of this keyboard is the lack of a headphone output, limiting the ability to play silently or connect to external amplifiers.

Conclusion

With its compact design, light weight, and unique sound, the Casio PT-90 is an excellent choice for anyone looking for a portable keyboard with an intuitive interface and nostalgic timbre, perfect for lo-fi lovers. Despite the absence of a headphone output, it remains an interesting option for those wanting to explore retro sounds.