Illusion Audio Carbon Series C6CX-CX 6.5" Coaxial Speaker Driver, Requires Crossover - Sold Individually

Woven carbon fiber cone with rubber surround, cast aluminum basket
Free Air Resonance: 68.36 Hz
Nominal Impedance: 4Ohms
Sensitivity 2.83 V @ 1 meter: 88.7
Outside Diameter: 166.5 mm
Mounting Hole Diameter: 137.4 mm
Mount Depth: 80.3 mm
Point Source Tweeter
Bi Amp 12 dB crossover
Maximum Linear Excursion: ± 7.7 mm