The Rotel RT-850 A is a stereo tuner that was manufactured between 1989 and 1991. It was priced at approximately 650 DM upon release. The unit is known for its reliable performance and decent sound quality, making it a respectable choice for audio enthusiasts. The RT-850 A is a part of a broader lineup of Rotel products, including various preamplifiers and power amplifiers. It supports an array of broadcasting formats, including long wave, which is significant for receiving a wider range of radio signals. Its design is typical of the era, with a focus on functionality and ease of use, featuring analog tuning and standard connections for integration into audio systems.