The unit I have is the 1200 watt 10 inch subwoofer It sounds great I do have a problem with when I turn up the volume it gets drowned out by the highs and when I turn the volume down he gets drowned out by bass so I constantly have to adjust the input on my deck I will be adding another unit to the other side seat so I have a surround sound the unit is installed in a 2002 GMC sierra 1500 extended cab.