The Pioneer CS-656 is a speaker model that was part of the CS series, which was released during the late 1970s to early 1980s. It features a three-way configuration, consisting of a 12-inch woofer, a 5-inch midrange driver, and a 2-inch tweeter. This combination is designed to provide a balanced sound reproduction across a wide frequency range, from deep bass to crisp highs. The CS-656 is constructed with a wooden cabinet, which contributes to its acoustic properties and aesthetic appeal. It typically has a sensitivity rating of around 92 dB, allowing for relatively efficient sound production, and is rated for an impedance of 8 ohms, making it compatible with a wide range of audio amplifiers. The frequency response covers approximately 30 Hz to 20 kHz, which means it can reproduce both low-end and high-end audio effectively. The speakers are known for their solid build quality and are often praised for their performance in various listening environments, from casual audio enjoyment to more serious listening sessions. Additionally, they feature adjustable controls for bass and treble, allowing users to tailor the sound to their preferences.