They are very different sounding, completely different type of headphones. You can't really A/B compare a closed back dynamic can and an opened back planar...I just got my LCD-2C and have been comparing it to my Fostex TH-X00 Mahogany powered by the Mojo Chord running USB-Dac from my computer. I have to say... I'm kinda disappointed w/ the Audeze. I'm getting better bass prescence and power from the Fostex, and even though the mids are a bit more forward, it's also more engaging on the Fostexs.
Am I doing this wrong? Do I need to upgrade the amp in order to get more out of the LCD-2Cs. I almost want to say because it's a bit more rolled-off than the Fostex, I'm not getting as much clarity and resolution compared to the Fostex.
Listened to following FLAC:
Mariah Carey - Underneath the Stars
Mariah Carey - Fourth of July
Ariana Grande - Thank U, Next,
Blackpink - Boombayah
Childish Gambino - Redbone
Kendrick Lamar - Redbone
Daft Punk - Get Lucky
Bruno Mars - 24K Magic
Blackpink - Kill this Love
First of all Mojo is a brilliant device, but not really enough to drive the 2C adequately. You won't get the bass performance it is capable of from a full sized amp.
The X00 is a fun sounding headphone with elevated and punchy bass and elevated treble. Recessed mids and a very forward, almost aggressive sound and a slightly cramped soundstage. It easily strikes inexperienced ears as the more exciting sound at first.
The 2C is a more mature sound that needs proper amplification. It sounds airy, neutral, natural and balanced in comparison. Also relaxed compared to the X00. With proper amping and enough time to adjust to the sound you will discover that the bass is more accurate and better balanced. The mids come alive but the treble is bit rolled off. I couldn't listen to X00's sharp treble.
Ultimately it is personal taste, perhaps you are not at a point in your journey yet where you can fully appreciate an opened planar sound.
These two headphones however are very different too. The 2C is technically on a much higher level but you need an amp with it.