Summary: These sub's are somewhat good, they are supposed to be rated for 5000 watts together but they aren't, I had these sub's for maybe s month and both of them blew with only a 3000 watt monoblock amp.
Summary: Great subs, great box, and a bomb deal. Box is huge for a big cadillac or suv. I've only got one set two could be unbearable. I had to take the box apart and then rebuild it in the trunk of my intrepid. Fits now and even without the amp, boom.
Summary: They didn't sound too bad...but one only lasted two days. The other started to give but I just switched from a 5000 watt Amp to a 1000 watt and it beat strong until I decided to upgrade completely.