PRV Audio’s Alto Series woofers were carefully crafted and voiced to reproduce a natural, smooth sound while remaining dynamic. To get the superior fidelity, a special composite cone is built with non-pressed paper (visible on the back side) for reduced break-up, smooth frequency response and to keep the moving mass low, increasing the efficiency. A unique, woven-cloth dustcap helps to achieve high sensitivity by reducing moving mass, while helping to cool the voice coil. Alto Series woofers work remarkably well in vented and sealed cabinets, as woofers in two-way speakers or as midrange speakers in three-way systems and even shine when used as bass guitar and guitar speakers.