Eminence PSD:3006, 2"" Titanium Compression Driver, 3"" Flat aluminium wire voice coil, Power: 140 W (Programm), Impedance: 8 Ohm, 108 dB 1W/1m on ME 75 horn, Weight: 6.4 kg, External diameter: 180 mm, Depth: 90 mm, Suitable as 1.4” driver for DE 700 and DE 750