Sennheiser headphones are in general one of the best to go to. I used to own the Beyerdynamics as well. I'm an audio engineer so monitor headphones are too crucial for me. I've tried a lot of brands. But Beyerdynamic, Sennheiser, Audio Technica and AKG stood out in most cases. But it's personal preference as you have pointed out. Great choices though. I appreciate your sense of wanting a natural pair of headphones and not colored. Not many think like that these days. Most want "More Bass". Totally respect you for the knowledgeable preferences. Great personal write up bro. Cheers!