I just received the LCD-2C. These are LOUD AF !! But still maintain dynamic range without that compressed sound at high volume. (I’m sure the Topping A90 has something to do with that)
I agree with all the points in the reviews for these headphones. Although I don’t really notice the midrange and treble roll off to the point where I feel the music sounds weird as a result. (Like my Sennheiser HD8 DJ’s which were awful) The center image is also kind of missing as reviews stated, when instruments move from one side to the other, it kind of disappears in the center where it’s not really focused.
The DT 1990 Pro definitely is better in frequency response, imaging, and has a lot more detail. For example Queensryche - Silent Lucidity, there’s a build up in the song where a male voice speaks and then it “climaxes” with a female voice whispering “love me…” Which always gives me chills on the DT 1990 Pro. WIth the LCD-2C I don’t have that reaction and the voices seem kind of muted or distant, by comparison. (This might improve slightly with some EQ’ing)
The sub-bass with the LCD-2C I think is indicative of planars, having a roll off in the low end. They remind me of my old JBL 12" sub that had a low Qms value which resulted in low excursion distance and a highly damped, detailed sub-bass sound, but also a steep roll off in the low end around 30 Hz. By comparison to my JL Audio 12" sub that has looser bass, and much greater driver excursion, giving it that nice boomy sound with a lot more energy (moving more air).
EQ’ing the sub-bass didn’t help much because again we’re dealing with driver limitations. So I doubt I’ll get that boomy driver sound I like from dynamic drivers, which I’m sure I would get with the Fostex TH909.
However the sub-bass and upper bass slam is still better than the DT 1990 Pro at loud volume, because it doesn’t suffer from driver excursion distortion/noise. In fact the low end in some songs that is very present, around 30 Hz, sounds stronger and louder with these planar headphones.
So overall the LCD-2C are more fun without the hassle of driver distortion with some bass heavy tracks. I think I would enjoy the Fostex TH909’s more but at this point they’re beyond my reach/budget. I also just really love how planars can get really loud without the typical compressed sound I’m used to. So it sounds more like listening to larger drivers in a room.
Edit: Found the EQ settings, they are great! https://www.reddit.com/r/headphones/comments/9oa9u6/lcd2c_eq_based_on_oratorys_eq_profile_and_the/