Pros: beautiful artisan build quality; amazingly open, extended, spacious; balanced across FR and dynamic; pinpoint imaging; tight tight tight extended bass
Cons: somewhat heavy right at top of skull
Disclaimer -- Like many on this site I am super picky, but even more so when it comes to headphones. Unlike audiophile speakers, I find there are very few headphones that I like. Although I have Magico S5 speakers driven by a Constellation Centaur amp (or Air Tight ATM-2 tube amp), there are many speakers I have owned or would be happy owning (e.g., Magnepan). A few years ago I auditioned every flagship headphone in one day at ALO Audio in Portland. Only one had the musical and balanced sound that my ears liked (Beyerdynamic T1) - TO MY EARS...HD800 had incredible soundstage and comfort but sounded too bright and etchy, Denon was extended but too tubby, Grado was wonderfully dynamic but not coherent enough, etc. Across multiple amps and sources, the T1 was what I kept coming back to as fast, dynamic, organized, musical, balanced, etc. So I bought it (adding to my existing HD 650 which I still love but always wish was less veiled), and have been happy ever since, using the Bryston BHA-1, Beyerdynamic A1, and Pathos Aurium with Mullard NOS 6922 tubes. I needed a second pair of headphones for a vacation home/work so was going to buy another pair of T1s but my local audio Guru, Kurt Doslu at Echo Audio told me he fell in love with new Audeze cans and picked them up as a line. His ears and my ears are simpatico, so I was surprised because I listened to the LCD-2s a couple years ago and while they had a lovely midrange, they sounded shut in and dark to me.
I took my T1s to Echo Audio this past week, and while the shop was pretty empty due to a snow storm, I auditioned the LCD-3, LCD-X, and LCD-XC and compared all to my T1s. My T1s were the most comfortable to wear, and had the prettiest, easiest to listen to fully extended musical sound, but the new LCD line brought something new to the game that I ultimately had to have. I was ready to buy any of the three, or simply purchase another T1. My impressions below, which I will update after extended listening. I listened to these primarily through the Pathos Aurium head amp with full gain since this will be the primary amp I use and had just done extended listening through the T1s through it.
- LCD-3: Beautiful wood trim, comfortable on the skull, and like all three wonderfully comfortable and soft ear pads. Very accurate bass. Unlike many cans and speakers, the LCD-3s don't add an artificial bump in the bass or mid-bass. Incredibly spacious and with solid imaging. Really good reverb and decay (but not as good as T1s). As with all Audeze cans, they were more dynamic and meaty than the T1s which surprised me due to architecture differences). Immediately though, I felt like 70 percent of what I was hearing was the midrange. While it was lovely, it was too much midrange for me, which took away some sparkle and balance I was looking for. Just a tad too midrangey for my ears.
- LCD-X: Something elegant about black on black monochromatic look. Most comfortable of the three Audeze cans on the head. More balanced across the spectrum than LCD-3 with more air. Of the three I believed the X cans had the most bass. For me, too much bass, and some of it undefined as when listening to deep bass guitar lines, being able to hear the different notes versus just a lot of low end energy. But, probably of the three, the most fun to listen to when using digital sources and those recordings where you wished there was an equalization option to increase the bottom few octaves.
- LCD-XC: Wow beautiful wood and build quality, but wow big and heavier. I didn't feel a clamping effect but did feel the weight of these on my head. Not a big deal but I can see where some people would punt due to weight. When I put my T1s back on they felt like feathers in comparison. But, the beauty and size observations immediately disappeared when I listened to the music. I was expecting a more shut in constricted sound versus open back but these sounded even more open and equally spacious. More air and high end extension perceived versus the other two Audeze. Better balance through bass-midrange-treble, with the treble extended but smooth and never irritating, and the bass extended but really well defined and textured. The soundstage wasn't as wide as the 3 or the X, but I believe I heard better imaging and a higher soundstage. The sound was one click more inside my head than the other two but still projected really well compared to most every other can I have auditioned. I forgot I was listening to a closed back phone.
I bought the LCD-XC on the spot. The fact it has noise isolation and little leakage is a great bonus.