Eminence PSD:3006, 2"" Driver, Impedance: 8 Ohm, Power: 80 Watt, Resonance: 511 Hz, Frequency range: 500 - 18000 Hz, 114.4 dB SPL, Size: 76.2 mm, Flange connection with screw holes in square with hole distance of 72 mm, when measured from center to center