Submitted by Kryceck t3_11oqor9 in headphones
To address the elephant in the room, I understand that Abyss is a pretty controversial manufacturerer here and I just simply want to cut through that noise and get to the nitty gritty of the Diana Phi TC. Is it the best sounding headphone on the planet? Well, from the 20 minutes or so of my time spent with it, I do believe it's one of the best headphones on the market today (save for something like the the HE-1 or Shangri-La Sr.). Here's my honest thoughts on this incredible TOTL headphone.
Source: Source it was running off of is the WA33 which oh man, great amp but was definitely necessary due to how power hungry the Diana Phi TC really is.
Build and Comfort: I mean, it's a no brainer that this is extremely well constructed, from the pads, to the chasis, and the materials used to build it. Comfort is actually incredibly good. Maybe it was the pads that were on it, but it was very cushioned with no serious clamp pressure while also not being loose either. No complaints in this category.
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Bass: Absolutely incredible. Extremely well textured, clean, highly resolving, and has no issues reaching the deepest lows with no noticeable roll off I could hear. Planars are always well known for that rumble in the low end with incredible clarity and the Diana Phi TC is no exception. It's not boomy, and it certainly isn't lacking in bass quantity either. Personally, I really enjoy a much linear or flat bass response and this delivers it in spades. Listening to Random Access Memories was a joy with this headphone, especially the track Doin' It Right.
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Midrange and timbre: Simply put, I have yet to listen to a midrange as lush as the Diana's presentation. The timbre of the instruments were just really sublime on this headphone. This might be a nitpick similar to what Joshua Valour said in his video, but the vocals could be a *tad* bit more forward for the sound presentation the Diana is aiming for (this is me coming from daily driving an HD800 where the vocals were recessed intently) but other than that, there's no brittleness, sibilance, harshness, graininess, or any other negative sonic characteristics that would impede on the midrange of the Diana Phi TC, to my ears anyway. Really solid here.
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Treble: Smooth, refined, and stupidly resolving without any excessive treble spikes. Coming from daily driving my HD800, I thought I knew what excellent treble was, but this blew my expectations out of the water. Top end information can be highly resolving without a spike that really puts you off from other genres of music without some addition of modest EQ and the Diana really opened my eyes to that. Don't get me wrong, to say the HD800's treble is bad is getting off on the wrong foot, but I do think the tuning of the Diana TC is done in a way that can satisfy both critical listeners, but also listeners who like to casually enjoy other genres as well without it ever coming off as fatiguing or too excessive in the upper treble frequencies. The HD800 in comparison with its spike at 5.5K-6K is superb for genres like jazz, acoustic pieces, chamber, orchestral, and other genres like that of the sort. The Diana's treble can expand to other genres like EDM, rock, metal, and such without ever feeling like you're being attacked by it incessantly. Though, as a note, which should be obvious, if the recording itself sounds like shit, it will tell you it will sound like shit, just not the point where it'll be unbearable though!
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Resolution and Soundstage: I think if you've already figured it out by now, the Diana TC is ridiculously resolving in almost every category of the frequency response I can think of with hardly any real faults. As a side note, I demo'd the LCD-5, Susvara, the 1266 and some Stax headphones prior to listening to the Diana TC and the only headphones of that list that trade blows is the LCD-5, the Susvara, the Stax SR-009 and Stax L700. The LCD-5 though is what would've taken it for me had I not demoed the Abyss Diana TC. The soundstage of the headphone is nothing exceptionally wide since its inherently going for a more intimate sound, like others have noted about it. But what I think stood out for me was the depth and layering it had within its almost room-like staging presentation. The imaging and positioning of the vocalist and instruments within the track were just so unbelievably precise, to some degree, ALMOST better than the HD800 in that respect. I still think the HD800 is undefeated in soundstaging and imaging, but damn if the Diana TC doesn't come close, then I don't know what does.
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My Conclusions and who this is for: Well, as a TL;DR, this headphone is utterly exceptional as an all rounder TOTL headphone that basically ruined every other headphone for me. The summary though for those who did read this far, I think this is for someone who wants an intimate, extremely high fidelity, personal listening experience at the highest level I could possibly think of, if you've got $4,500 to burn. I really recommend for anyone to really try an Abyss Diana if you're able to before dismissing something you haven't listened to before hand. I was skeptical going into listening to the Phi TC primarily because of the things I've read about their headphones and their shady business practices and walked away very pleasantly surprised by their house sound specifically, but on the business side of things, I understand where people are coming from.
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Avatar-san t1_jbu7ess wrote
I'd like to hear one someday, would be nice to get some frequency measurements to see how it measures and then compare how it sounds subjectively.
People kept telling me hd800 is bright and unnatural and I expected it to be an issue and it turned out that its kind of tunning was very agreeable to me and way less of a problem than I thought looking at graphs.