The JBL Control 419CS/T is a ceiling subwoofer, featuring an 8" woofer and integrated enclosure for installation in most ceiling plenum spaces. When you need to extend low-end performance, the Control C419CS/T integrates seamlessly with Control 400 Series full-range models to significantly extend low-frequency bass output. A full-face magnetic grille blends seamlessly with modern decors and optional black and square grilles are available. Mechanical improvements include redesigned terminal covers with top and side cable entry ports and an extremely reliable new dogear design that works with a wide range of ceiling thicknesses. The JBL Control 419CS/T includes a transformer to support both 70V/100V and low impedance applications.