Klipsch R-5650-W II In-Wall Speaker - White (Each) 1 Titanium dome compression driver mated to 4 square 90 x 60 Tractrix Horn 6.5 Cerametallic woofer Horn-loaded technology increases acoustic output while significantly reducing distortion Pivoting Tractrix Horn tweeter for clear sound in any location Treble and midbass attenuation switches and IR receiver knock out