The Denon DR-320 is a high-fidelity cassette deck that was popular in the late 1980s and early 1990s. It was known for its excellent sound quality, precise playback, and advanced features like Dolby Noise Reduction and a high-torque motor for fast seeking. The DR-320 was a popular choice for audiophiles and professional studios, and is now considered a collector's item for vintage audio enthusiasts.