Bests & Worsts Reviews from Amazon

A couple years ago, I ordered five well-rated headphones at once to compare quality over price. These were the overall winner, and I've purchased several more over time. Unfortunately, the latest batch is a completely different product. Either Panasonic started skimping on production or these are cheap counterfeits (more likely). I just plugged these into my electronic drum kit and literally could not hear the kick drum's bass sound at all. I thought my kit was messed up, but instead plugged in an older pair of these and noticed not only a clear rolling bass, but all of the sounds were much fuller and richer. It's a shame that Amazon isn't doing anything about counterfeiting. The positive reviews here are outdated and worthless.