A subwoofer is an important component of any audio system, making it complete. STAGE 1200B from JBL is a high-quality and solid passive subwoofer. The JBL STAGE 1200B subwoofer diffuser is made of polypropylene, its diameter is 300 mm (12”). Diffusers made of this material have large internal damping and a smooth amplitude-frequency response, which has a beneficial effect on the quality of the music being reproduced. Such diffusers are more resistant to weathering and moisture.