DS-180CDT features a 8” Polypropylene woofer and a 1” Pivot Silk Dome tweeter mated to a round Tractrix® horn for dynamic acoustic performance. Utilizing Klipsch Patent-Pending SkyHook™ Tool-Free Installation System, your install time is reduced by 75%. Frequency Response 73Hz - 20kHz +/- 3dB, 1" (2.54cm) Silk Dome Tweeter mated to a round Tractrix® Horn, 8" (20.32cm) Polypropylene Woofer, 94 dB @ 2.83V / 1m, 50W RMS, CUTOUT DIMENSIONS 9.8” (24.9cm), MOUNTING DEPTH 4.45” (11.3cm)