Kicker KS4100

The Kicker KS4100 are directional speakers used to upgrade car audio systems from their factory installed speakers. While these share most of the features of the Kicker KS400, these speakers follow an oval shape that makes them 4 x 10 inches.

This allows an increase in power to 70 watts, and a better bass range representation with a frequency response of 45 hz to 20 kHz. No grilles are used here, allowing users who have pre-existing grilles mounted over OEM speaker holes to use those instead. As with the Kicker KS400, 1/2 inch tweeters are used that work with neodymium magnets in a ferrofluid coating for a clean, distortion-free sound.