The JBL XTi Sub 300 is a subwoofer designed to deliver deep bass performance in home audio systems. It features a 12-inch long-throw woofer, which is capable of producing robust low-frequency sounds that enhance the overall audio experience. The subwoofer is equipped with a built-in amplifier, providing efficient power output for rich bass tones. It utilizes a frequency response range from 29 Hz to 150 Hz, making it suitable for a variety of music genres and movie soundtracks. The cabinet is constructed to minimize resonance, allowing for clearer bass reproduction. Additionally, the subwoofer has adjustable volume and phase controls, enabling users to tailor the sound to their specific room acoustics and personal preferences. This model typically integrates well with various audio systems, whether it be for music playback or home theater applications.