Polk Audio Polk db570

When it comes to sound in your car, you like it powerful, yet smooth. Polk built the db570 speaker for high efficiency, to deliver the big sound you're looking for, but with the refinement of speakers usually costing much more. This 5"x7" speaker combines a polymer/mica composite woofer with a rubber surround to keep the bass crisp and clean. You'll enjoy the lush high-frequency tones of the liquid-cooled, silk/polymer composite 3/4" dome tweeter. Instead of the simple high-pass filter found in most car speakers, a built-in 2-way crossover network sends the appropriate frequencies to each driver for cleaner sound and better imaging. Grilles are not included — factory grilles are appropriate for most installations.