Morel Ultimo SC102 10" Ultimo SC Series 2-Ohm SQ/SPL Subwoofer (SC 102) 10" Ultimo SC Series 2-Ohm SQ/SPL Subwoofer Power Handling: Peak: 2000 watts each woofer / RMS: 600 watts each woofer Impedance: 2 Ohms Frequency Response: 10-900Hz Sensitivity: 90.5 dB