0.75-inch (19 mm) Silk Dome TweetersThe silk dome tweeter is prized by audiophiles for delivering realistic, non-fatiguing, high-frequency performance.The C5 component tweeters are built with 0.75-inch silk dome diaphragms that deliver smooth, extended response, on and off axis. Flush-mounting and surface-mounting fixtures are included to fit a wide variety of installation needs. The flush-mount fixtures feature our RSR (Ratcheting Swivel Rotation) mechanism to allow precise tweeter aiming after installation.Inline 12 dB / octave high-pass filters with tweeter protectors are included with this kit. The C5-075ct is designed to operate above 5 kHz with a minimum high-pass slope of 12 dB / octave.Sonic character: Smooth and balancedMade in Germany, Sold as a pair.