I had an hour-long audition with the Meze LIRIC and the Dan Clark Audio Stealth today.
Long story short, the LIRIC was a better fit for my tastes, whilst the Stealth remains a good contender for a top-tier closed-back headphone (with some caveats).
First things first, both headphones are very comfortable in use; neither headphone has a strong clamp. In tandem with the lush, thick pads, and with bodies that are feather-light, the 2 of them were a pleasure to use.
On to the sound....
Meze LIRIC
The LIRIC sounds very different from the brand's original flagship, the Empyrean. The latter exceeds in bringing to the fore a lush, textured, meaty sound that's more parts musical than detailed, more fun than balanced, in the overall sense. In contrast, the LIRIC takes a different approach - the tonality is leaner by choice, with a bass presentation that is lighter on the slam; on the flipside, the highs on the LIRIC are more prominent, with good articulation and presence. In comparison, the Empyrean struggles, on occasion, to deliver the magnificent highs that its comparative brethren in the top-tier, open-back space achieve with stunning efficiency.
Ultimately, the LIRIC takes a more level-headed approach; it's an Empyrean that has decided to mature, by shedding away its layers of verdant bloom and blush, and introducing a more neutral take on things, comparatively speaking. You'll still enjoy a bass section that has good layering and sub-bass extension; the midrange retains a decent amount of warmth that provides vocals with authority and vigor; and you finally have a treble section that is more lively, with good detail, sizzle and sparkle.
With EDM, the LIRIC doesn't struggle to provide a good semblance of energy, dynamism, and musicality; these are the traits that I seek most in headphones (or IEMs). A robust bassline, replete with texture and slam, accompanies the aforementioned treble section to give dance music a figurative boost; you'll hear the thump and the cymbals, the synths and the grooves. This is a headphone that pairs very well with EDM, IMO.
Dan Clark Audio Stealth
To be brutally honest, I wasn't impressed - at all - with the Stealth when I first listened to them. They sounded rather lifeless and lackluster; it was severely lacking in engagement and musicality. Still, I proceed to listen to the very same tunes that I subjected the LIRIC to, and it became apparent to me that the Dan Clark Audio flagship had more than a few tricks up its sleeve.
Evidently, the Stealth is a maestro at producing the finest bits of detail; clarity was clearly (no pun intended) at the forefront of the designers' minds. Amongst the myriad closed-back headphones that I have tried, only the Rögnir stands alongside the Stealth as an equal in the pertinent aspects of resolution and detail.
In the bass department, a slight mid-bass hump lends a touch of warmth to an other neutral-oriented headphone; the layering on the Stealth is quite superb. Couple this with the excellent sub-bass extension, and you have a presentation that's quite welcoming to bassheads. On the other end of the spectrum, treble is equally inviting, thanks to an airy display that retains good articulation. It isn't a bright headphone per se, but the highs are certainly one of the best in the Dan Clark Audio stable; probably the Ether C Flow 1.1 provides highs that are equally as prominent as the treble on the Stealth.
Sadly, despite its top-tier resolving capabilities, I found the Stealth deficient in the (important) facets of dynamics and musicality. Despite its ability to produce micro-details with effortless labor, the overall sound didn't engage me in a very meaningful way. I could certainly appreciate its technical strengths; it is definitely a headphone that was made to distill the qualities of top-end open-back headphones in a portable, closed body. With that being said, I couldn't enjoy my music with them - I played crucial segments of 15-20 of my favorite dance tracks between the Stealth and the LIRIC, and the latter won on the "toe-tapping, head-bopping" scale, each and every time.
Overall
Make no mistake, though, if you are in the hunt for a closed-back headphone that has fortes in the aspects of detail, layering, and balance, the Stealth is a good-to-great choice, albeit one that is somewhat pricy. If you don't need a portable solution, the Rögnir remains the better option, IMO. It is equally as resolving, but is easily more engaging and dynamic than the Stealth.
The LIRIC, on the other hand, is a fantastic option at the $2,000 mark. Yes, this isn't cheap either, but $2,000 is still half of $4,000. What you lose in sheer resolving prowess, you gain in musicality, engagement, and fun. Plus, they are just as portable, so neither headphone gets the win in this department.