The Sanyo Super D Plus N 33 is a part of the Plus series manufactured by Sanyo from 1979 to 1981 in Japan. This model is designed with a Super D noise suppression system, aiming to enhance audio clarity and reduce unwanted noise during playback. The unit features a sleek design available in silver and black, making it visually appealing for audio enthusiasts and collectors alike. The original price of this model was approximately 698 DM, reflecting its mid-range position during its time of release. The Plus series encompasses various other components including integrated amplifiers, preamplifiers, power amplifiers, and a range of tuners and tape decks, indicating a comprehensive approach to audio equipment in this lineup. The N 33 is often recognized for its quality construction and reliable performance, appealing to users looking for vintage audio solutions.