Hertz DCX690.3 Dieci Series 6"x9" 3-way car speakers

Features

PEI Dome Tweeter: Each speaker has a PEI (Poly-Ether-Imide) dome tweeter. PEI is a polymer film that produces a wide soundstage to improve imaging.

Woofer: The woofer cones are made of water-repellent treated paper.

Midrange: Depending on whether you're reading the information printed on the box or in the manual, you might describe each speaker as having a tweeter and super tweeter, or a tweeter and midrange. The smallest driver, a 15mm dome, is similar to the tweeter on the two-way speakers in the line, so I described that as the tweeter. Thus I described the 2-1/2" treated paper cone as the midrange.