I've had my LCD-X powered by a Neve RNHP for over a year now. I bought them because I do not have a nice symmetrical treated room. My loudspeaker situation is always changing and chaotic so I bought these as a primary reference. I felt like it was my best option for creating a controlled environment and could be a potential alternative to monitors. So far is seems to be. The natural, balanced and dynamic sound is amazing. The only drawback is that the stereo imaging is different than speakers, but I have monitors and speakers too, I kind of have a handle on how that affects things.
Very impressed for heavy use as a piece of reference equipment and for listening enjoyment.
The build is rugged. The materials and finishing/textures are resistant to showing wear and fingerprints. A very rugged build with a very industrial design language that I don't worry about at all. A good sign for a professional tool that is an investment.
One thing that I have discovered about the ergonomics of this headphone I wanted to share to help others:
The earcups are large. If they are placed too low, they break the seal at the back of my skull nearest to my neck.
That problem makes the bass extremely weak when it occurs, non existent almost and makes the sound overall bad. If you are experiencing weak bass or don't like the bass, the fit and seal are the first thing you should check (then the amplification matching the requirements that they list on their site, they're accurate).
I highly recommend keeping a close eye on that and under consideration when adjusting the fit using the notched post mechanism thing. I also recommend keeping the suspension strap maintained to avoid the issue sneaking up on you.
Not everyone's anatomy is the same.
The only issue that I have had so far was regarding the ergonomics and the suspension strap stretching/being too short in the first place.
Also I tried Reveal in the past and it was not good at the time. And there was a glitch and support for that was really bad as well. They ignored my really specific and detailed description of the issue and asked me to send pictures. There was no way to express it in pictures. I suspect that there was a language barrier. When the LCD-X is so close to what I perceive as neutral, there's not really much point to me for using some elaborate software. There are also a lot of other crossfade/mixing environment simulators out there. I don't really see the point of all that.
The 2021 revision of the LCD-X, I found might need a tiny 2db bass shelf and maybe 2db 4khz boost. But referencing on them and taking them literally without any DSP, there aren't any translation issues for me. Even though what is exactly neutral in a headphone isn't something that is completely established in a concrete way, the brain burn I have with these seems to get it where I am accomplishing what I was going for.
When I get some releases under my belt mixed and mastered on these maybe I'll share. I like results.