New Hifonics Brx12d4 900W Brutus 12 Dvc Car Subwoofer 4 Ohm 900 Watt Sub Woofer Series: BRUTUS Type: Woofer Cone Material: 12 Polypropylene Woofer RMS Power: 450W Sensitivity: 84 dB Impedance: 2 x 4 Ohm Cut-Out Dimensions: 10-15/16 Feature: 12 Dual 4 Ohm Brutus Series Subwoofer Heavy duty woven texture polypropylene cone & injection molded dust cap UV Resistant butyl rubber surround Dual resin infused textile spiders Push & insert style speaker terminals Heavy duty ABS protective motor cap Powder coated deep draw stamped steel basket ABS rim ring with blue illumination Operates in sealed and ported enclosures 2.5 High temperature voice coil 56 oz Vented motor TOP-MOUNT DEPTH: 5-9/16