Dual Electronics DLS404 4-Way 4 inch Car Speakers with 80 Watt Power & 30mm Mylar Balanced Dome Midrange 4-WAY CAR SPEAKER PAIR  their 4-Way design enables mid and high frequencies to be projected in a uniform and wide dispersion pattern for smooth off-axis response and high quality sound performance LOW PROFILE & VENTED BASKET DESIGN  the low profile basket design allows for installation flexibility while the vented basket dissipates heat for improved efficiency and durability STUDIO MONITOR PERFORMACE  your 4-Way speakers produce 80 Watts of Peak Power, 20 Watts RMS, 4 Ohm Nominal Impedance & Frequency Response between 123Hz-20kHz for unrivaled sound superiority DUAL PIEZO TWEETERS & MYLAR BALANCED DOME MIDRANGE  this combination allows extended high frequency response and enhanced vocal clarity for a surreal sound experience SOUND CONSTRUCTION  to ensure optimal performance on your DLS speakers we added Injection Molded Polypropylene Woofer Cones for accurate bass response and Butyl Rubber Surrounds to withstand heat and moisture, prolonging the life of the speakers 1 YEAR WARRANTY  guaranteed high quality and reliability with hassle-free parts and labor warranty with excellent customer service DIMENSIONS  4 inches