Celestion Seventy 80 16 Ohm, 12" Chassis, Impedance: 16 Ohm, Frequency range: 80 Hz - 5 kHz, Ceramic magnet, Power capacity: 80 W RMS, Mean SPL: 98 dB, Voice coil: 1.75", Suitable for hole with Ø 229 mm, Weight: 3.1 kg