The KEF C3 is a compact two-way speaker system characterized by its 0.75-inch aluminum-dome tweeter situated above a 5.25-inch polypropylene-cone woofer. It features a front-ported cabinet that stands 11.4 inches high, making it suitable for various setup configurations. Designed primarily for higher volume playback, the C3 excels in genres such as disco, hip-hop, pop, and rock, providing a robust sound experience. The sound profile is noted for a pleasant emphasis on the bass, combined with vivid upper mids and highs, contributing to an engaging listening experience. While it may not strictly adhere to traditional speaker design ideals, it offers a fun and exciting sound that is likely to appeal to many listeners. However, some critiques point to a slightly loose bass and coloration in vocals, which may not satisfy all audiophile preferences. The frequency response measures from 60 Hz to 20 kHz, with a minimal impedance of 5.0 ohms and an average impedance of 8 ohms. The sensitivity rating averages at 84.3 dB between 300 Hz and 10 kHz, indicating its performance capabilities.