Great subwoofers. Many will differ with my opinion but I love them. they sound clear and hit hard. I have 4 of these in my car when to a competition and got 4th with 145.5 dbs I was the only Sony guy in my class and I beat all rockford Fosgate in my class. the only competition I had were Kicker Subs but you pay for it too. I only paid $45 per sub so I think I got a great deal for what it sounds like and I have an ear for good sounding stereo systems. I am pushing 2400 watts with the 4 subs and haven't blown them.