This vintage sales brochure features Dual cassette decks including models 810, 820, 830, and 839RC. With this brochure, you can get a glimpse of the innovative features and sleek design of these classic audio devices. Discover the Dual brand, known for producing high-quality audio equipment, and explore the possibilities of adding a vintage touch to your collection. This brochure showcases the variety of models available and provides insight into the brand's history and expertise. Whether you are a collector or simply interested in high-quality audio equipment, the Dual cassette deck sales brochure is a valuable addition to your knowledge base.