Yes I do EQ the MGs a little, mainly to address the very slight hump at 1.3 kHz and reducing the small peaks at 5.5 and 10.5 kHz, which are far less present than the original Clear. I prefer slightly recessed upper mids than Harman, so I leave the 2-4 kHz region as it is on the Clear MG. But as much as I like using EQ to get the perfect sound, I would be more than happy listening to the Clear MG with no EQ. My other main headphone the Hifiman HE-500 on the other hand, does need EQ in the mid bass and treble to sound as natural as possible.
I am curious about the LCD-X 2021 though, I've been reading reviews and comparisons recently to the Clear/Clear MG. Could you comment on what you like about the LCD-X more or less than the Clear MG? I would love to give it a try soon, I've heard great things about it.
I use the following EQ with my Clear Mgs:
Low shelf +1.6 db at 100 Hz, Q=2 (because they can't match planar driver bass, and there's a natural roll off)
-2.3 db at 1250 Hz, Q=3.5 (this is the stock "Focal nasal voice hump"; I try and flatten every headphone I've had to 2 kHz.).
+4.0 db at 4900 Hz, Q=6 (this is probably far less noticeable than the above).
+1.5 db high shelf, at 2400 Hz, Q=1.6 (this addresses the darkness that's the biggest difference from the Clear OGs)
I had used the Crinacle curve to come up with this (that man is brilliant).
I also use DSP in JRiver to expand the soundstage (which is lousy in the best of times, with any Focal headphone). I've heard the Utopias in Carrollton, TX, and even with that one, due to the size of its drivers, the soundstage isn't as big as even that of the LCD-Xs. The imaging, however was impeccable, within that soundstage. In fact, razor sharp. But, it should be for $4600. The LCD-5s are slightly less expensive, and the Meze Elites. New competition.
I haven't owned the HE-500s, but read those aren't exactly the last word in resolution. I have only owned the Arya v2s (which I feel out-resolve both the Clear Mgs and the LCD-X 2021s I currently own).
I can't hear above 13 kHz at my age, but this has no bearing on my decision to leave the region above 10 kHz alone, as I feel that only percussion overtones are present in this region, and are nowhere near as noticeable as the hump at 1250 Hz (which the Clear OGs had as well, which I happened to own for about a year).
Focal Clear Mg:
- lively signature, more "sharp edged" notes than the Audeze, but not as prominent as with Clear Ogs
- midrange focused headphone
- more technical
- better for vocals especially female, but not music that has a lot of content below 100 Hz
- better for simple tracks
- shows 40 mm dynamic driver characteristics (smaller perceived sound stage)
- Sennheiser HD800S and HiFiMan Arya beat this headphone handily in sound stage
- good punch and slam especially for an open back (Senny HD800S, and HiFiMan Arya are weak in this area)
- Sennheiser HD800S out-resolves anything below $2000 but isn't as enjoyable to listen to
Audeze (except for LCD-XC, LCD-5 and CRBN)
- dark signature
- thick, slightly warm, and rounded notes
- more musical
- bass focused headphone
- more body in bass notes due to planar driver, like if you turned your sub way up
- resolution about the same as Focal Clears and as good as any at their $1200 price point
- best for complex, wall of sound classic rock and EDM tracks (there is no other headphone I would listen to ZZ Top or the excessive Led Zeppelin songs like Kashmir with)
- prefer the Clears for The Rain Song
- two of my favorite synth heavy tracks that had come out while I was a teenager, U2's Where the Streets Have No Name, and Mothers of the Disappeared, sound nowhere near as good to me with any Focal headphone even the resolution king Utopias, we're getting to the physical characteristics of the planar driver here
- tracks that have a lot of synth and female vocals present a problem: the Focals are better at the latter, the Audezes, the former
- better perceived sound stage due to 106 mm drivers, a close to speaker like experience, but HD800S, Arya, HE-1000 are better still
- not as good for simple vocal focused tracks with little bass, they sound laid back compared to any Focal headphone, even with EQ, though they are closer to neutral than with previous products
- not the best Audeze headphone, but their best deal by far especially since you now get a case for your $1200 - I had LCD-3 for a bit and they're darker than LCD-X 2021 and don't out-resolve them
- LCD-3 has a wonderful warm, lush signature that's especially good for female vocals (the reason I had returned HiFiMan Arya v2s) but I still prefer the LCD-X 2021 for most music
- good punch and slam as well (few HiFiMan headphones do this as well)
Imaging isn't as good with either one of them, as with headphones that are over $2000.
My Martin Logan speakers out-resolve all of the above and are closer to the LCD-4, that's the main reason I hadn't spent over $2000 for something like the Verite Closed.