# Polk Rectangular 2-way In-Wall Loudspeaker TC615i Sold singly (packaged one per box). Single units can be used for center Channel applications in stealth installs # Dynamic Balance polymer composite Driver for smooth wide-range response with low distortion # Wide dispersion design for uniform sound-coverage throughout even large rooms. # Durable, moisture resistant materials, including Butyl Rubber surrounds, for safe use in kitchen, bath & sauna. # Infinite Baffle Tuning uses the virtual ...