The Alphasonik 6.5-inch car speaker is a mid-range speaker and dome tweeter. The tweeter size is 1.1 inches. The material used on the Alphasonik PCT6501 includes composite material for the woofer, neodymium material for the magnet, and butyl rubber for the surround. This two-way automotive speaker is a non-enclosed speaker that features a proprietary high-gauge steel frame with a chrome-plated back plate and a magnet cover. The minimum frequency response on this Alphasonik 6.5-inch car speaker is 42 Hz, and the maximum frequency response is 22 kHz. Further, the sensitivity of this speaker is 92 dB. Additional technical specifications on this Alphasonik 6.5-inch car speaker include 400 watts peak power handling and 200 watts RMS power handling. The Alphasonik PCT6501 has a top mount depth of 2.5 inches, a bottom mount depth of 2.6 inches, and a cutout dimension of 6.2 inches. This two-way automotive speaker is normally offered as a pair and is designed to be an upgrade to an existing stereo system.