YAMAHA SPX90 Digital Multi-Effects Sound Processor

The YAMAHA SPX90 is a historic landmark in the history of digital multi-effects processors, released in 1985 with a list price of 99,800 yen. It combined reverb, delay, chorus, pitch shift, and other effects into a single unit, becoming a staple in studios and live performances of the era and a massive hit worldwide. Key Features Pioneering Multi-Effects: Utilizing a proprietary DSP LSI, it delivered a wide variety of spatial effects in a compact 1U rack-mount size. Excellent Value: Despite being priced under 100,000 yen at the time, it delivered professional-grade sound quality. Unique Sound Character: The original presets—particularly the spacious reverbs and pitch-shifting effects—possess a distinctive atmosphere that was indispensable to the music and guitar sounds of the ’80s and ’90s (and are famous for being used by artists such as Tomoyasu Hotei).