These were good at first when I got them, I had about 30 Watts RMS going to them from a Soundstorm 4 Channel amp. I had 2 sets in the back back of my explorer (custom) and they were goin strong, but then one speaker blew. Now that was my fault. One day when I was testing them out, I accidentally switched them off of high pass to low pass and the bass blew out one of them. I really like these speakers, but just watch your settings and bass. And I'm also not sure if I'd put 60 Watts RMS to each one. Maybe 40 tops?
After searching several website, I finally found a one with good quality, a name brand, and good price. I had some complications with other companies and canceled many orders with others. But here I got great customer service and my product in a timely manner. Thanks