HERTZ CX690 Line Hundred Pair of Speakers Coaxial 15X23CM 300W Grid

6 × 9 inch semi-pressed elliptical paper cone SPP-M (Semi Pressed Paper-Mica), reinforced with mica powder for an excellent balance between lightness and cushioning Wide rubber suspension for long trips and excellent sound attenuation. High density flux ritrite magnet combined with low carbon polar plates for reduced distortion at high power levels Basket with metallic finish, acoustically combined with a rubber magnet cover to completely dampen interference vibrations. 40mm dome tweeter for efficient distortion-free reproduction of medium and high frequencies 20 mm (0.8 inches). Dome supertweeter to maximize the level of very high frequencies in horizontal installations. Tweeter faceplate geometry, optimized with FEM (finite element modeling) simulations to provide an extremely linear frequency response in off-axis installations Elegant grille made of high-impedance ABS plastic structure with metallic finish combined with a metal protective grille