The Pioneer CS-055 is a loudspeaker model produced from 1984 to 1986, forming part of an audio system alongside other components such as the Pioneer SC-55 receiver. The CS-055 was designed to deliver quality sound and was marketed as part of a comprehensive audio setup. It represents a segment of Pioneer's efforts to cater to discerning audio enthusiasts during the mid-1980s. The loudspeaker is intended for use in home audio systems and pairs well with other Pioneer's models, including the SA-055 amplifier and other associated components. Outfitted with performance specifications that aim to enrich listening experiences, the CS-055 plays an integral role in providing balanced audio output across various genres of music. The system in which it was sold had a total price of 5,000 DM, which included the audio rack CB-05. While specific technical specifications such as frequency response, sensitivity, and power handling might be critical in assessing the overall audio capabilities, they are not explicitly noted here, reflecting a common practice in the marketing of audio systems during that era.