As many others have discussed build quality and comfort, I'll jump right to my sound comparisons between the Dan Clark E3, Denon D9200, and Hifiman Arya Stealth. I used the Harman target from Oratory1990 on an RME ADI-2 DAC FS for listening comparisons to put them on even footing with the E3 which comes pre-tuned to this target. I'm most interested in a headphone's capabilities rather than its default tune. Though the E3 doesn't disappoint there. I used a crossfeed of 1 on all tests as it sounds more natural to my ears and removes fatigue.
This is the playlist I use to test against.
It's truly the curse of hearing something better that leaves you with no path back. That's my experience with the E3. I didn't think finding all the open and closed-back qualities I was looking for in a single headphone was possible, but the E3 delivered, effectively replacing both of my former favorites.
The E3 opened my ears to something I hadn't heard before. Rather than listening to the headphones, I finally feel I'm simply listening to the music.
The E3 resolves more detail than the Arya Stealth (AS) without the thin or grainy quality it can introduce. Where the AS excells in replication of string instruments for example, it can leave vocals feeling thin and even shouty at times. The E3 gives all the detail to strings and vocals while adding volume and body to them. It allows vocals to layer in while retaining smooth and lifelike qualites. It feels a bit like having your cake and eating it too. All the resolving clarity and sharpness when needed yet still effortlessly lush and musical.
The E3 highlights that the D9200, while previously impressive to me, can have a hollowness to its vocal that leaves it far less engaging. Even the D9200's strong suit, it's fullness of bass and sub-bass is rendered less controlled and precise than the E3. End-to-end the E3 bests the D9200 easily from the lowest lows to the highest highs. The D9200s default rumble and slam is easily replicated on the E3 with a tiny bass shelf at 105Hz. I did get a bit lost playing with this shelf as the E3 takes well to EQ. You can max the bass shelf and not incur distortion, even on a track like 2049 from Hans Zimmer's Blade Runner. A shelf will not be needed for most folks. I'm just a bass head and a little +2 shelf perfects it for me.
I also feel I'm lacking nothing in the bass department from the AS. That's saying a lot as the AS has a strong sub-bass offering.
The E3 takes the prize on soundstage from the competition. It's just as wide as the Arya Stealth yet able to produce sounds with higher precision throughout its width. This headphone sounds open. It clarifies why Dan Clark went with the grill design behind glass. Once you hear it, you instantly understand this design decision. It's not BS, it's an open-back, only with all the isolation of a closed back.
The sense of layering and separation between sounds allows for a more precise understanding of the part instruments are playing in each track. Two cymbals off to the right can sound dramatically different in depth even though they are close to one another. There is impressive precision here, and it is not available in this way on the AS or D9200.
The excellent timbre leaves vocals excelling on the E3 over its competitors by a large margin. There is no sibilance which can occur in the others. Voices have body and realism that I haven't heard before and finally sound "right" to my ear. Vocals on the AS and D9200 have long been something I struggled to put a finger on what was off. Either they were too shouty, or too hollow. This is gone on the E3.
This quality may be why people call this a mid-forward headphone. To me it feels balanced top to bottom, it's just that I can finally hear the mids they way they should sound.
The timbre of strings stands out to me as well. Along with the sharpness of a pluck there is the fullness, and warmth to the resonance of each string. Trine Opsahl's "A Star in Heaven Is Born" or Fleetwood Mac's "Never Going Back Again" really showcase this. Classical string fans will be happy with what is on offer here.
An interesting quality I wasn't expecting is that the E3 is also able to make enjoyable listening of less well recorded tracks (not in my playlist above). While you will hear the imperfections, the overall smooth and musical qualities makes the listen enjoyable, a twist of the bass or treble knob as needed makes them fun. I couldn't handle bad tracks on the AS; the D9200 was more kind to them, but often had a hollow quality. The E3 lets me enjoy my entire collection.
Overall, I don't think there is anything the AS or D9200 can do better sound-wise. The D9200 is now destined for eBay, where it will fund a mobile amp for the E3. I'll keep the Arya Stealth as it stays cool for long work sessions and allows sound to pass through so I'm not cut off from the world when needed. But I mostly put headphones on to focus on music, and for that, the E3 is my current cup of tea.
Well done Dan Clark. Thanks for making this exceptional set of cans.