The Alpine SPS-619 Type S coaxial speakers use a soft dome silk tweeter for excellent high frequency sound reproduction. The tweeters can swivel up to 10 degrees so you can adjust for the optimum listening position. Type S shallow mounting design allows for easy installation in a wide range of door panels giving you a perfect fit. Their high efficiency design can run off of the built-in amplifier power from the factory or Alpine head unit, resulting in an easy system improvement for any vehicle. 260W Power Handling, 4 Ohm Speaker.