ACTIVE R-SERIES EVO 2 SUBFRAME 14 liter round closed box with R 10 FLAT EVO3-D4 + CO-220.1 Hole cutout for 2nd R 10 FLAT EVO 2 available Very strong MDF housing and internal supports 300/220 watt Impedance: 2 Ohm Width = 580 mm Height = 135 mm Suitable for: 10 Inch Subwoofer box active