Klipsch RP 404C II Center Channel Speaker DM40 Individually tuned chambers and rear firing ports The chassis comes pre Individually tuned chambers and rear firing ports are placed in each woofer to break up in speaker standing waves resulting in an immersive and precise listening experience larger 90° x 90° silicone composite hybrid Tractrix horn provides incredibly efficient transfer of high frequency waves into the listening area to create a crisper the Klipsch RP 404C II Center Channel Speaker combines Klipsch signature acoustic expertise with cutting edge technology to deliver the new gold standard in premium home theater and hi fi listening solutions