Specialized speakers designed to reproduce low-frequency audio signals, commonly known as bass. They add depth and impact to a vehicle's sound system, enhancing the listening experience with powerful and resonant bass tones. Subwoofers typically require a dedicated amplifier to drive them due to their power demands, and they come in various sizes and configurations to fit different vehicle spaces and audio preferences. They are a core component for enthusiasts seeking a rich and immersive audio experience in their vehicles.