The DLS X-Program was designed for those that love their music and love to listen at high levels. This specialized line from DLS has everything you need for a high-end, audiophile sound system. With precise engineering, these items still offer complete control of your audio and help you preserve the sound quality. The X-Program from DLS is a Sonic Electronix exclusive and is the perfect blend of performance and price. Just like the rest of the DLS products, the X-Program is designed and engineered by DLS in Sweden. 5-1/4" SA-Series 2-Way Car Component System Power Handling: Peak: 600 watts per set / 300 watts each side RMS: 160 watts per set / 80 watts each side Sandwich style cone is stiff with low weight Rubber surround 1-1/16" (28mm) Hand treated fabric, soft dome tweeter Neodymium tweeter magnet 4 ohms impedance Crossover with 6 dB low-pass filter and 12 dB high-pass filter Ribbon air coil in crossover enhances the sound quality and clarity Phase plug helps direct the sound waves and enhance sound quality 4" Magnet structure Includes grilles Sensitivity: 86 dB Frequency Response: 50-25,000 Hz Top-mount depth: 2-9/16"