(4) Sundown Audio X8 v4 & Chevy Crew Cab 07-18 Quad 8" Subwoofer Box Combo

This package includes: (1) Rhinolined Quad 8 Chevy 07-18 Crew Cab Ported Box (4) Sundown Audio X-8 v.4 Subwoofers (4 Ohm or 2 Ohm) Fits:Chevy / GMC 2007 - 2018 Crew CabFord F-150 2009 - UpFord Super Duty 2017 - 2024 Tuned to 35hz 2.0 Cubic Ft.   Sundown X-Series v.4 8" 1000watts RMS x-8 Subwoofer Specifications RMS 1250 watts Dual 2 or 4 ohm voice coil Made for extremely deep bass Triple-stacked magnet 2.5” voice coil If you want to run at a 1-Ohm load (with one amp), get (4) Dual 2-Ohm subwoofers. If you want to run at a 2-Ohm load (with one amp), get (4) Dual 4-Ohm subwoofers. For any other setups you can check out our subwoofer wiring diagram Designed with an extended pole piece and an incredible four inches of peak-to-peak excursion, the X v.4 is engineered for ultra-deep bass and high power handling. Engineered to set a new standard in the low-frequency/small-ported-box subwoofer category, the X Series can also work in up to a 50% larger enclosure if you desire even more low-e