Nice looking subwoofer box. Appears to be sturdy. Nice quality. Packaged well with Styrofoam and cardboard for safe shipping. I installed two ct sounds 10" ozone subs, which was a perfect fit. The box fits perfect under the back seat of my 2013 f150 supercrew. The subs are 800 watts rms each being powered by soundstream 1600 watt rms at 1 ohm. I'm not running full 40 volts amp output yet for break-in, but let me tell you this setup slams!