Feel the acoustic pleasure rush through your veins as you flick on the Pyramid PP12. The 12-inch polymer laminated woofer of this Pyramid car speaker gives you a very smooth frequency response as well as minimizes cone breakup. The 3.4-inch super horn piezo tweeters of this Pyramid car subwoofer gives you enhanced frequency range. Add a booming bass to your music with the dual bass reflex vents of the Pyramid PP12. The MDF carpeted enclosure of this Pyramid car subwoofer produces a tight, rock solid box and enhances its durability. Get impeccable sound quality with the 4 ohm impedance of this Pyramid car speaker and rock your world.