3-way speaker system?? 6-1/2"Foamed-Mica Cellular Reinforced Woofers?? 1-3/8"Polyester Main Tweeter?? 3/4"Piezo Super Tweeter for extended high-frequency response</br>Perfect compatibility with Sony MEX-N and CDG-G head units?? Power Bass Response w/(50 -24??000 Hz) Effective Frequency Range</br>4 ohm Speaker Impedance?? 270 W Max Power Handling?? 40 W Rated Power Handling</br></br>Product Description</br></br>Upgrade your existing car audio system with speakers specially designed with high-power handling and dynamic audio performance with solid?? low-end bass in mind. The perfect match for a high-powered Sony head unit?? FB speakers feature beefed-up internals and rigid MRC woofers to deliver BIG sound from a conventionally sized and priced speaker.</br><br/>http://www.amazon.com/gp/product/B00TM98RWI  R