Kappa 603Cf. 6-1/2" Component Speaker System SOUND ELEGANT AND LOOK ELEGANT Infinity Kappa Series speakers, available in all standard sizes, are built to bring a new standard of excellence in car audio to virtually any vehicle. Kappa’s Plus One™ fiberglass woofers deliver high-output, deep and robust bass. The high-resolution 3/4" edge-driven textile dome tweeters deliver soaring highs up to 40kHz. 2" and 3" midranges are available to upgrade two-way component systems into three-way. The compact 3" midrange speakers also offer a perfect plug-and-play solution with low frequency response to 300Hz, and high sensitivity. Specifications: Sensitivity (@ 2.83V) - 94dB Frequency Response - 500Hz – 7kHz Impedance - 3.0ohms *By request/order.