I'm torn between the LCD-2 (not Classic) and the LCD-X. I have the HD800S so I want a headphone to offset them with some hefty bass. Any pointers would be appreciated!
I bought my LCD-X in 2017 so what I write is from my memory of reading a lot of comparisons and reviews on the LCD-X.
I remember reading a lot of comparisons between the LCD-2,LCD-3,LCD-X and some comparisons to the HD800.
In terms of tonality, I think you should feel the bass of the LCD-2 more.
However in terms of performance - The LCD-X should be vastly superior to the LCD-2 and better than the HD800.
The LCD-2 are considered to be the entry level to the LCD lineup, While the LCD-X is at the LCD-3 level of performance.
The LCD-2 should sound a lot darker than the LCD-X and is the complete opposite of the HD800 - The LCD-2 is a lot darker, has a smaller soundstage and a more hefty and heavy sound than both the LCD-X and the HD800.
The LCD-X is kind of in between them, Offering you a more neutral sound signature than both the LCD-2 and the HD800.
You get better bass than the LCD-2 (although in lesser quantity), more detail retrieval than the LCD-2.
The soundstage is smaller than the HD800 but the imaging can even be better and more precise than the HD800.
The LCD-X is a jack of all trades - giving you solid performance in every genre of music.