Infinity Kappa 63XF Kappa Series 6-1/2" 2-way car speakers

40kHz High-resolution Silk Dome Tweeter - Kappa edge-driven silk dome tweeters equipped with oversized voice coils deliver silky smooth highs with impressive thermal power handling and 40kHz high resolution. Patented Plus One Glass Fiber Woofers - Infinity’s glass fiber woofer cones are lighter and stiffer with more cone-area than the competition, delivering increased low-frequency output and higher efficiency. Hearing is believing. 0dB or -3dB Tweeter Output Level Control - The push-button on the angled tweeter allows tweeter output level control of 0dB or -3dB to optimize system linearity based on installation location. 3-way Upgradability - Kappa 2-way component system crossovers are compact and equipped with 2-way and 3-way selections to accommodate a 2” or 3” midrange upgrade. The optional 2” or 3” midrange includes a bandpass crossover to upgrade a two-way system into a three-way system with perfect tonal balance. Slim and Smart Crossover Design - Kappa component systems all have very slim crossovers, which equipped with connection cable for easy installation. The push-button on crossover allows tweeter output level control of 0dB or -3dB to optimize system linearity based on installation location.