The JBL 3677 is a professional loudspeaker designed for use in various audio environments, including live sound, installations, and broadcast applications. It features a robust design and aims to deliver high-quality sound reproduction. The loudspeaker is equipped with a dual 15-inch woofer configuration, which helps to produce deep bass and clear mids, while a high-frequency compression driver enhances the treble response, providing a balanced audio output. The cabinet is built from durable materials, ensuring reliability during use in demanding conditions. This model is suitable for both portable and fixed setups, making it versatile for different sound reinforcement needs. Specifications typically include a frequency response range that covers from sub-bass to high treble frequencies, a power handling capacity that can withstand extensive use without distortion, and connectivity options for easy integration into existing sound systems. The design also accounts for effective dispersion patterns, allowing for a broad coverage area in the audience space.