Sibilant highs are my kryptonite.
I don't know why sibilance was brought into the conversation? I don't remember anyone mentioning that. The person that complained about treble said "harsh highs" I believe, which is not the same as sibilance.
It is worth showing/mentioning that there might be different impressions of treble harshness due to the driver variances in these units. Here are 2 different LCD2C's measured on the same rig:
As you can see, the second graph shows around 5dB or so less energy in the 8k peak. That is pretty significant and unfortunately a common driver variance issue with Audeze. I know Tyll just mentioned in his latest Advanced Alpha review that he has 2 LCD2C units on hand and I believe when he posts his review he will include both measurements, so that will be another good data set to see driver variation.
i was expecting more natural sound. When i listen to a wood kick on the drums it doesnt sound natural for example. when i listen to them at low volume,yes, it sound good. but when i turn to loud leves, it sound diferent. that wood kick takes some metalic color. With other headphones is the opposite, the more loud i listen the better sounds the music.
To address this comment, I actually agree with you. I received my LCD2C in the last few days and have been listening to them as well as burning them in. These aren't my final thoughts in any sense and I am still taking time to decide how I feel about them. But from owning 2016 LCD-2F and now LCD2C, I still stand by my feelings that Audeze never sounds as "natural" to me as Sennheisers, particularly the HD600 and HD650. And I don't think this is a symptom of your amp. I have been listening to the LCD2C on my Magni 3, NFB-11, and R2R 11. They all do the headphone justice and it sounds great on all of them. But being a musician myself and playing in lots of different bands and orchestras as well as attending lots of live classical/orchestral performances, there is just something about the timbre of instruments and vocals that aren't 100% right to my ears. I'm not saying LCD2C or LCD-2F is way off, it is just slightly off, and I can mostly only notice it when I directly compare it to my other headphones that feel more "right" in timbre to me like HD650, Atticus, and Auteur.
Now with the rest of my initial impressions of LCD2C, I actually think it is a solid headphone all around and one of the best in its class. It actually addressed most my issues with LCD-2F. Comfort is far better and I commend Audeze for working out a better system with the suspension strap. Yes, this feels even much more comfortable that the LCD-2F with Lohb strap. It just feels lighter all the way around. Build quality is also excellent and feels very premium. The pictures don't do it justice, the matte black finish is really great and I overall prefer the look and feel of this to my old Aluminum LCD-2F. I also think Audeze really nailed it with the $600 price tag, though I am not convinced it should be $800 and have mixed feelings about it. Really I love everything about this LCD2C but the sound. I think the sound is very very good overall, but there's nothing about it that blows me away. I think its best features are the very clean and linear sub-bass response and the overall smooth tonal balance. It transitions really nicely from bass to mids to highs without any rough patches or grainyness. I still feel the upper mids are just a bit too dipped and I think that is why the timbre and naturalness sounds a little off to me, but I wouldn't say this is a dealbreaker depending on the music you listen to. I think LCD2C is best at more modern, bass emphasized electronic and pop types of music. I wouldn't recommend it for jazz/classical/orchestral stuff or really vocal heavy/emotional singer-songwriter types of stuff. Basically, I think the LCD2C is really great for people upgrading from mid-fi cans and could be a pretty solid all rounder. I think for people like myself that might have other TOTL cans, the LCD2C doesn't really bring anything special to the table. I'm leaning towards keeping it because it is a solid headphone overall and I don't have any other planars, but I'm still on the fence and I'm not sure how much head time it would get in my collection. I'll definitely keep it for a few weeks at least and I will eventually write up a full review of it with comparisons to lots of other headphones.
