For anyone wanting the measurements and EQ in one spot, I figured I’d post it all here.
I’m currently working on a review of both the 2021 LCD-X and XC, but here are the results for now:
The bass response is actually not as low as that, it seems to be some interaction with the ear and cheek sim as mentioned earlier. Here’s the on-head bass response:
So it still dips down a bit at 30hz.
Here are two EQ presets for the LCD-X:
V1: more fine-grained

V2: fewer filters

I’m curious which one you guys like better.

