Definitive Technology DT6.5R DT Custom Install Series In-Ceiling Speaker Open BoxExclusive 6.5 composite mineral-filled polypropylene driver cones offer superior transparencyAn annealed aluminum tweeter dome provides great transients and smooth responseHigh definition crossover network with Mylar capacitors delivers the purest high frequenciesImproved sound dispersion and off-axis response casts incredible sound throughout the room Speakers for the Senses Definitive Technology speakers are designed to immerse you in sound. Every element is opt