So I just received a 325e from Amazon. The right headphone is I'd say is 75% lower in volume compared to the left. Like this isn't something subjective, like oh, the bass, vocals or whatever sounds more powerful on one side than the other. No, it's clear as day there's something defective about the unit I received. I'm going to send it back and givesome thought in maybe shelling out the extra cash for an RS2e. But this whole thing got me thinking, how is Grado's quality control? What if something less noticeable, maybe not able to be picked up by the average person goes wrong? Like instead of a 75% volume difference, there's a 2%? Or maybe the driver is tuned differently in each ear compared to another unit?