I hesitate to give these 4-stars right now because I only have 40-50 hours of burn in so far and, as others have mentioned, these are taking a long time to break in. Initially, I was pleased with the detail in certain areas, but a loose, boomy bottom end left the overall sound lacking cohesion. The good news is, they are tightening up more and more each time I listen to them and I have every expectation I will love them with another 40-50 hours. I'll try to update my review when I'm confident the burn-in is complete.