This incredible sounding component set features a 6.5" poly-treated paper cone with a santoprene surround and anti- resonant "open design" cast aluminum basket for true high fidelity sound reproduction. The 3-inch anodized aluminum voice coil and flat spider ensure increased power handling and perfect linearity. The 1-inch silk soft dome tweeter maintains clear and smooth upper frequency reproduction and with flush and surface mounting capabilities it offers ease and flexibility in installation.