Alpine SPS-619 three-way 6-by-9-inch car speakers feature a large diameter voice coil to provide you with powerful clear sound backed by 250 watts of output. Progressive Aramid Spider suspension provides deep-toned bass sound from the speakers and break-up mode control when playing at high levels. The speaker's cones are crafted from mineral-fortified polypropylene cones and have butyl rubber surrounding the sides to provide natural tones and stability. A swivel tweeter in each speaker can be angled up to 10 degrees for tuning in the perfect sound. These type-S speakers are designed to look good in addition to providing clear sounds, so you can mount them behind factory grilles or out in the open in your car's interior.