Features Components Sbg-30Br: 12” (30Cm) Type-G Bass Reflex Subwoofer (2Ohm) Mrv-M250: Digital V-Power Mono Amplifier High Quality Wiring Kit Remote Bass Level Control Specifications Boxed Subwoofer 12” (30Cm) Type-G Bass Reflex 800W Peak Power Handling (2 Ohms) Included Protection Bars Dimensions: 383Mm(W) X 390Mm(H) X 304Mm / 411Mm(D) Amplifier V-Power Digital Mono 550 Watts Max. Power Adjustable Low Pass Filter, 50-400Hz @24Db/Oct. Variable Bass Eq (Fc=50Hz), 0 To +12Db Rca & Speaker Inputs Dimensions: 190Mm(W) X 55Mm(H) X 200Mm(D) Wiring Kit 5M Rca Cable With Remote Line 6M Battery Cable, Incl. Fuse Holder And Fuse 1M Ground Cable 2M Speaker Cable Remote Control 12Db Of Linear Adjustment Range 5M Connection Cable Included Easy Plug And Play Installation