15 Zoll (38 cm) extremely resilient SPL subwoofer, 100 mm aluminium double voice coil, 2x1 Ohm, 2x 1500 W RMS, 2x 3000 W max power, Kevlar-paper sandwich membrane mounting depth 20,7 cm diameter 34,9 cm weight 27 kg. TECHNICAL DATA DIN - size 15 inch Mounting diameter 14,13 inch Mounting depth 8,19 inch Nominal impedance) 2x 1 Ohm Number of voice coils 2