10 cm (4) woofer with low resonant frequency and compact size. Highlights * Low resonant frequency in compact design * Low noise due air gap venting and t-toke * Simple basket for various installation possibilities Product Details Visaton KT 100 V 4 Midrange Driver Large strokes possible due to elastic rubber surround and deep magnet while noise is minimized through venting of air gap and t-yoke. Simple basket for various installation possibilities.