KICKER 44L7S104 10" Square L7 Solo-Baric Car Subwoofer - Dual 4 Ohm (Renewed) - Premium Bass for Trucks, SUVs & Car Audio Systems

I built a box for this subwoofer for a friend but he ended up not liking the size of the box so I bought one of these to use myself and holy s***! I replaced a kicker comp r 12" with this 10 inch l7s and this thing absolutely beats down. It's manufacturer refurbished so you don't have to worry about quality issues (I called the seller to confirm). I have my amp pushing 600 watts to it and I've never been happier with a single sub enclosure. I'm going to buy a second one and build a new box for both given how happy I am with this sub. If you're on the fence, just do it. It's worth it