This is a vintage spec sheet from the 1980s for the Sequential Circuits The Pro-one synthesizer. It provides a detailed overview of the device's features and capabilities, making it a must-have for collectors and musicians alike. The sheet covers a range of aspects such as the brand, model, and categories, including musical instruments and gear, pro audio equipment, and synthesizers.

With this spec sheet, you can get a glimpse into the world of music technology from decades past and understand the advancements made in the industry. It's an excellent resource for anyone interested in the history of music and technology.