The larger size has also allowed a better bass, with a frequency response range of 100Hz to 22kHz. Otherwise the same features are present, including the Flex Fit basket and OEM adapter plate to allow installation into almost any pre-cut space. An ICC (Integrated Concealed Crossover) handles filtering, reducing the amount of external hardware required. Butyl rubber surround reduces distortion, and the construction consists of a polypropylene injection molded cone and is mineral-filled. Vertical Attach Surround Technique (VAST) improves the effective area that the speaker is able to fill with sound.