6.5" 3-way 400 watt (150-watt RMS power), 4-ohm coaxial speaker pair with carbon fiber injected polypropylene cone, 1" voice coil on aluminum former, 1.2" balanced dome midrange, 3/4" soft dome super tweeter. Features treated woven cloth surround, 92 DB system efficiency, 65-20khz frequency response, increased efficiency diaphragm, overcompensating motor structure improves low octave bass response, multi-driver midrange & tweeter for dynamic sound & performance, quick disconnect wire terminals & custom grills. Mounting depth: 2.1"