BMS 4592ND-16, 2"" Coaxial Driver, Size: 2"", Power: 150 W RMS + 80W RMS, Impedance: 8 Ohm, Frequency range: 200 Hz - 22 kHz, Sensitivity: 118 dB, Diameter: 132 mm, Depth: 113 mm, 4 x M6 threads, Pitch circle diameter 101.6mm, Weight: 2.3 kg