Pioneer TS-A6978S 100W RMS 4-Way Speaker with 650W maximum music power. The new, rigid Carbon and Mica Reinforced IMPP cone and Elastic Polymer Surround provide quicker response and higher sensitivity. Produces deep and rich bass sound. Pioneer's OPEN and SMOOTH sound concept provides a seamless and smooth transition between the midrange and tweeter drivers and delivers uniform off-axis frequency response optimized for automotive applications where one or more speakers are often aimed away from the listeners’ ears. It comes in 9-inch length by 6-inch height.