JBL Control Contractor 100 Series in-wall speakers are ideal for boardrooms, reception areas, airports, convention centers, cruise ships, retail outlets, restaurants, museums, or any application calling for superior sonic performance with minimal visual impact. Speakers are built from the ground up with components that leverage 70 years of JBL research and development, including high-performance woofers and pure titanium dome high-frequency drivers with EOS™ (Elliptical Oblate Spheroidal) waveguides for low distortion and smooth response. A swivel-mounting system lets users direct high frequencies without introducing diffraction distortion, and a high-slope crossover network maintains natural midrange sound and produces more even coverage throughout the listening area. Installation is simple: Speakers fit easily into wall spaces in standard stud-wall construction, or can be placed in optional rough-in frames. Control Contractor 100 Series in-wall speakers are voiced similarly to other JBL Control Contractor models, allowing them to be combined with surface-mount and in-ceiling speakers within a single listening space. Baffles and grilles are paintable to match any décor.