Sony's XS-GTX1642 6-3/4" speakers feature woofer cones made from Highly Oriented Polyolefine, a proprietary material that's lighter and stronger than polypropylene for better energy efficiency and power handling. These cones recover very quickly from one note to the next, increasing clarity in the vocal range. Sony's unique treated cloth surround is light and thin along the inner edge for quicker response, and thickly reinforced around the outer edge to keep the cone in place during heavy use, which means better power handling and increased accuracy.
Each 4-way speaker takes care of the rest of the musical details with a 1-7/16" midrange driver, dome tweeter, and dome supertweeter. Sony blends these complementary elements together to produce well-balanced sound, from the lowest bass note to the highest cymbal crash. High-frequency response extends beyond the normal limits of human hearing, producing the overtones that make the instruments sound more natural. Sony includes grilles for custom installations.