@Hands I gotta say I preferred the results of your real ears. Treble generally looked smoother, especially on the LCD2C, although the bass is probably more accurate now. I guess you can use the LCD-2C to compensate your rig as that's probably almost perfectly flat to 10Hz. Also I would've compensated for the >10kHz rolloff on the in-ear results. And, as I mentioned somewhere else already, I would also lower the 5kHz region a bit (about 3db for me) - despite the resonance I don't think the area sticks out on the HD600 to me. I also don't hear a peak here with the modded HD800, which my measurements would show otherwise. YMMV. It's interesting how the peaks shift in frequency a bit. The ears are definitely different. Still, it's nice to see that the results are mostly comparable. I bet someone else's real ears would be even more similar to your ears than the dummy head ears. The EARS rig also has the added benefit of more consistent, more reproducible results, I bet. Right now the 2.5kHz region looks a bit high in both measurements to me, at least compared to your in-ear FR plots, btw. Nothing too major, though. @Biodegraded Probably not much different from his regular CSDs. Some treble razors from the ears that will ruin the IR in my own measurements.