LaVoce SAF184.03 18" Professional Subwoofer Driver

 SPECIFICATIONS 3,000 Watts continuous program power capacity (RMS) 100 mm (4-inch) copper voice coil 45 mm peak-to-peak excursion (damage point is even higher) 14.3 mm xmax @ 1/3 gap; 19.3 mm usable excursion @ 2/3 gap Double silicone spider  Optimized cooling system Aluminium demodulating ring for very low distortion 18” Nominal Diameter 96 dB sensitivity 36 lbs Available in 4 and 8 Ohm Manufacturer's Datasheet (PDF) USAGE NOTES This premium driver from the professional audio world works very well in the MBM-18 cabinet. Two drivers produce upwards of 127dB from 30Hz up and upwards of 130dB at 70Hz.  If you are looking for a clean, impactful, music bass driver, this is an excellent choice. The driver's high efficiency and high resonant frequency allow it to achieve this enormous output with only about 10% as much real power at 70Hz as the UM-18 (one of our favorite home theater drivers).  The result is less power compression, less distortion, and a much 'punchier' mid-bass.  Two cha