my cuz has a mtx 1200 watt 12 inch in a matched box in his HB, and it sound amazing, as my grandpa say it breaks up congestion at 50 feet. i would also warn that without some sort of an anti rattle kit, that your hatch is going to vibrate like crazy, as well as if you get it to loud, being that close to a window, there is potential of breaking out the glass, but you would need at least 2400 watts to do that.