JBL Control Contractor 20 Series small-format ceiling speakers provide full-range, high-fidelity sound reinforcement for background music and music-plus-paging systems. Innovative features like titanium-coated tweeters and JBL's proprietary diffraction-horn loading technology deliver extremely wide, even coverage, meaning fewer speakers are required for any installation. Models are packaged as complete assemblies including grille, backcan and tile rails, and can be installed without accessing areas above the ceiling. All speakers feature JBL’s exclusive SonicGuard™ overload protection, enabling higher operational levels and improving reliability. Control Contractor 20 Series ceiling speakers are voiced similarly to other JBL Control Contractor models, allowing them to be combined with in-wall and surface-mount speakers in a single listening space. Models can be painted to match any décor; subwoofers, transducer assemblies and accessories are also available.