I wouldn’t say I buy and sell at a regular rate. My desire is to keep everything that I buy, but it isn’t always possible to demo before buying. I try to do my due diligence and enjoy exploring. I’d like to have a stable of gear that suits my various moods, genres, and preferences – but not more than that. I use the MZ2 mainly as a preamp into the Mogwai SE for my 2-channel listening.
This makes sense and lines up with my preferences/objectives also.
I have similar preferences, but for different reasons. Since I lean toward Class A single ended tube amps and their associated harmonic richness and even order harmonics (which some refer to as coloration/distortion, favorable), I’ve found that I prefer a more transparent headphone. A colored amp and colored headphone can be too much of a good things to certain ears.
I’ll share my impressions when I get my RADs. In the meantime, you might want to check out this thread: Rosson Audio - RAD-0 - Official Thread. Good luck!
Good point.