RVP18W4

How to set up your Rockville Replacement Woofer : Video of RVP18W4:   The Rockville RVP18W4 18" raw professional subwoofer erupts with power. These can handle 600 watts RMS. Compare these with other raw subs, and you can see a clear difference in power as well as in sound quality. Other subs might write 1,000 watts peak but they only have 200 true RMS watts. The competing products to this have 70 Oz magnet structures. This sub has a 90 Oz magnet. Features: Rockville RVP18W8 18" 1200 Watt Raw Replacement Subwoofer Power RMS: 600 Watts Peak Power: 1200 Watts Fiber Reinforced Ultra Stiff Paper Composite Cone Paper Composite Dust Cap Expanded and Rolled Steel Basket Accordion Cloth Surround Ultra Saturated, High BL Magnetic Motor Gap 3" High Temperature CCAW High SPL Voice Coil Linear Progressive Conex Spiders Dual Nickel Plated Banana Plug Terminals Impedance: 4 Ohms 90 oz Magnet  Mounting Depth: 7.17" inches Frequency Response: 26 Hz to 500 Hz Sensitivity: 101dB @ 1w/1m REVC: 6.3 Ohm FO: 36.084 Hz SD: 1.385 sqCM BL: 13.753 TM QMS: 3.62 QES: 0.845 QTS: 0.685 NO: 2.548% SPLO: 101 dB VAS: 473.708 Ltr CMS: 173.909 uM/N KRM: 4.414 m Ohm ERM: 0.819 MMS: 111.865 g MMD: 82.228 g KXM: 17.759 m Ohm EXM: 0.717 About Rockville Quality Control Procedures: The Rockville brand stands for Quality, Innovation and Value. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All user functions are tested and all internal components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. All Rockville monitors are backed with a full one year warranty, though it is unlikely that you will need to use it.