Turbosound TS-12W350/8A, 12"" Woofer, 8 Ohms, 350 Watts RMS, 1400 Watt Peak, 61 Hz - 3 kHz, SPL: 95 dB (1 W / 1 m), Rigid aluminum die-cast frame, Inverted dust cap, Mounting hole diameter: 299 mm (11.77""), Overall Diameter: 316 mm (12.44""), weight: 6,1 kg