The JBL Control 447HC, part of the flagship Control 400 Premium Coverage Series, is a two-way coaxial ceiling loudspeaker featuring a 6.5” woofer, conical RBI™, an integrated enclosure, and a narrow 85° coverage pattern ideal for use in highly reverberant spaces and high ceiling applications.

Featuring JBL’s proprietary conical Radiation Boundary Integrator® (RBI™) technology, the Control 447HC achieves constant directivity coverage, ensuring that listeners can enjoy an especially smooth sound character that remains extremely consistent, clear, and pleasant across a wide coverage area.

Control 400 Series ceiling speakers boast thoughtfully engineered mounting features to enhance safety, efficiency, and repeatability. Terminal covers allow for convenient top or side cable entry and are secured effortlessly with captive hand-screws. The reliable captive dogear design accommodates a variety of ceiling thicknesses, ensuring versatility for any environment.

All models embrace design elements tailored for modern interiors. The included full-face magnetic grille is paintable for seamless integration into any decor, while available black and square grilles provide added customization. Additionally, the Control 447HC supports both 70V/100V and low impedance applications.

卓越声学性能

Premium Coverage Series 采用 JBL 专有的辐射边界集成技术®（RBI™），实现恒定指向性覆盖，确保听众在宽广的覆盖区域内均可享受格外顺滑的音质，声音表现始终保持高度一致、清晰且悦耳。

高效、灵活的安装

Control 400 Series 吸顶扬声器经过精心设计，可提升安装的一致性与安全性，同时缩短安装时间。接线端子盖设有顶部和侧面两种进线口，使安装人员能够为每个应用选择最佳方案。防脱落狗耳夹设计极为可靠，适用于各种厚度的天花板。

精致现代的美学设计

全覆盖磁吸式网罩呈现流畅精致的外观，符合现代建筑设计的审美要求。网罩配备安全系绳，直接固定于障板，令人安心无忧。另提供黑色及方形可选配件网罩，进一步提升设计灵活性。