I use M1060C without EQing, and I love them. I am not a good example for those who listen to the gear before the music, but my criteria for validating gears (sound) is whether I like it or not. Gear presents certain sounds in specific ways, and to my liking, M1060C gives beautiful sound. What's also important to me to validate gear (sound) is whether it excites me or not...which is above whether I like it or not, and M1060C are very exciting headphones to me. Sennheiser HD 560S are very, very good, and I like them, but they are not exciting to me; I don't have the desire to listen to them all day, and it's the opposite with M1060C. I believe that headphones, particularly now speaking of M1060C, need certain gear to live more than EQing. In the case of M1060C, it doesn't even have to be an expensive amp or DAC (hm, the cable might matter, too), and they will sound beautiful. I don't need EQ HD820, but they must be connected to certain gears to live up to their potential.
And above everything, it's crazy that they are "pretty cheap" compared to other headphones with the same quality and excitement that they present.
One more thing, they look beautiful! The only thing I would like to be different is ergonomics. They do wobble on the head. The weight is not a problem, but you can feel carrying cups. If the headband is wider, that would be much better.
I was thinking of purchasing another planar, which would give me even more excitement, but having read reviews and exploring, I am unsure if any offer above what M1060C gives me.
They are definitely my preferred headphones among those I have.
Cheers!