Leviton AEI55 Architectural Edition Powered By JBL Dual 5-Inch Woofer Two-Way In-Wall Center Channel Loudspeaker Pure Titanium tweeter and Polymer-coated aluminum woofers for maintaining musical accuracy and clarity even at frequency extremes Elliptical Oblate Spheroidal (EOS) waveguide technology for improved high-frequency dispersion Straight-line Signal Path (SSP) crossover network for minimal signal distortion Long-excursion woofers with butyl-rubber half-round surrounds and extended pole-piece magnetic structures for maximum bass impact and dynamic range Integrated dog-ear mounting brackets (optional rough-in kits available for pre-construction installation in new homes)