The Pioneer CS-880 is a floorstanding loudspeaker that was produced in the late 1970s and is recognized for its dual 12-inch woofers, which provide powerful bass response and a wide dynamic range. This model features a three-way design, utilizing a 12-inch woofer, a 5-inch midrange driver, and a 1-inch soft dome tweeter. The CS-880 is designed to deliver an impressive frequency response, typically spanning from around 30 Hz to 20 kHz, making it capable of reproducing a wide array of audio frequencies with clarity. The cabinet is constructed from high-quality materials, often finished in a wood veneer, which adds to its aesthetic appeal as well as its acoustic properties. The speaker's sensitivity is usually rated around 90 dB, indicating its ability to produce a considerable sound level with relatively low power input. In addition, the CS-880 features adjustable midrange and high-frequency controls, allowing users to tailor the sound to their liking depending on the room and listening conditions. Overall, the Pioneer CS-880 is characterized by its robust build, powerful sound performance, and versatility across various musical genres.