A small review of my new setup
ODAC -> O2 -> Beyerdynamic T1
Oh man, I'm in headphone heaven.
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Quick comparison of my FiiO E17 to the ODAC->O2:
This isn't right to do without a proper ABX test, so I didn't try and dwell into it too much. But from some quick changes between them, there's something that's just less harsh, more detailed and more precise about the ODAC -> O2. I haven't been able to say it's night and day, but I haven't tested it too much. There seems to be a better control of bass, and the probably biggest thing is an overall more neutral experience, which in this case means a smoother listening experience.
Quick comparison of my DT880 Pro and the T1:
Now, this is a big difference. Obviously, I can't do an ABX here, but the differences are pretty clear here, anyway. I thought DT880 was pretty close to the pinnacle of headphones. Friends that try them are pretty amazed by them. They've been my steady pair for so many years and three iterations. I know them, and I thought they were pretty darn awesome. Oh man, is this something different. Not only the DT880s sound muddy in comparison, which is bizarre in itself, but while the DT880s are like taking a detailed look at the music, the T1s just bring so much more clarity. More on the T1s later.
Preface:
Let me just put this into context. I bought all of this when I went to Tokyo, because it was at lot cheaper than buying it here. While I was there, I had some late nights due to jet-lag after roaming the streets of the crazy city to go through the entire blog of NwAvGuy. I think he's turned the industry side-ways, and really wished he was still around, but it seems he's gone underground and decided to stay.
ODAC:
This tiny little box is damn impressive. I think the first thing we have to ask ourselves is what we'd like from a DAC. Pure precision, right? There's no reason what so ever to defend a product that's nothing but perfection in this department. Its job is to convert whatever happens to reside in the digital domain, and make it so that something can amplify it and serve it to us. There's no call for 'musicality' of a DAC. It's numbers. It's THD, cross-talk, intermodulation and all those fancy, reliable, scientific numbers that tell us something about how well a product reproduces the thing it is supposed to. And NwAvGuy has built this thing to perfection, as limited to the budget and appliance. One would wish for a dedicated power-supply for it, but after reading the ways he coped with a potentially unstable DC source that the USB-port can be, and seeing the results, I'm confident this is as good as I'd ever need. I'm not going to sit here and say it's night and day between this and other DACs, but I know I've paid a small price to know I'm getting as close to perfection as my ears will ever need. And it comes in a small, neat enclosure. It's plug and play. It's awesome.
O2:
I like the design JDSLabs have made for this box. I'm either migrating this to a box and slapping on a jack, so I can get away from using this jack->mini-jack pigtail that I'm using now, or I'm just replacing the volume-wheel with a different one, for some added "audiophile bling". Now we're in the land where audiophiles can scream for voodoo and maybe even snake-oil. But I decided to go for the scientific thing. I've been contemplating one day getting a tube-amp, but I might be a convert. Having seen the
drama he's caused by taking pricey equipment, bringing it under the light, and finding performance issues, only to so often be
shunned from an audiophile community that maybe otherwise stand for such things as
"trust their ears" and
"not believing that tests can prove how good audio-equipment is" might just show that the audiophile community has for many intents and purposes, sunken down to being a sort of inbred community where some are king, and price matters, and you can't argue that something might not be as good as someone feels it is, because they might be big on expectation bias in response to having spent several thousand dollars on equipment that might not even have been properly tested.
This guy does that. And he's proven you can make a headphone amp that's on pair with some serious reference models that cost more than I'd like to spend on headphone-equipment, even if I won the lottery. He's built a box with such a low Bill of Materials that it's quite crazy that it can even be in the same room with the DAC1 from Benchmark Media.
The convincing arguments I've seen on intermoduality, harmonic distortions that "create a new texture you haven't heard before" and otherwise other smoke and mirrors that can be in the audio industry, really shows that it's ripe for someone to bring out the hardcore testing equipment and start measuring.
I'm not going to even try and get into an argument on how products with testable imperfections might still "sound better" than those that provably do not, for discrediting such an inherently distorted and factually falsely reconstructing audio technique like the headphone tube amplifier might be going too far. I am interested in those too. But this is audio reproductive perfection. Or as close to it as you can get with some 12V batteries and materials for 30$. Which is actually is incredibly much further than you'd first expect. I'm so glad I haven't bought into some of the more expensive brands, and paid out for equipment that has been measured to not amplify the music without adding crosstalk and distortion. My most important thing to do now, was to get equipment I knew faithfully reconstructed the music I was listening to. If you'd rather go into a sphere of people saying "but this sounds better", then that's all fine. But me? I'd like to listen to the music the way it was recorded. The way it was made. I'd like for my equipment to be transparent. And now it is.
I don't think there's much more to say about the O2. Its input impedance is so low, dampening effects and the like are a non-issue. This is as good as headphone amps come without spending a fortune, if you believe in neutral sound.
Tesla T1:
Ah, my best investment yet. These things are quite breathtaking. At first I was slightly worried that the bass might be on the weaker side, but man, it is not. It's got such an accurate punch that it takes my breath away. It's perfectly present, without jumbling the mids or over-shouting the highs. I've never experienced such a neutral frequency response. But what it even more overwhelming, is the amount of room they can give to each other. Not only is the bass so controlled and present that it really makes you feel it, but the clarity of the rest of the spectrum stays absolutely untouched. The details soar through in what appears as some sort of slight of hand trick, reminding me of those containers with different density fluids, where the high frequencies can live ontop of a layer of medium frequencies, and so on. I don't get how things can be so clear, while the bass is pumping away.
And yet there's room for... room. The soundstage is so immense. I feels like you're just sitting in the room it was recorded. I showed it to my cousin, he's never paid interest in equipment like this, but he said he got goosebumps. The room presence, the clarity and the sheer awesomeness is goosebump-inducing. I saw them. He was breathless when I said the price, but after he had tested them, he said "now I understand that it's worth spending so much money on something like this". And that's what I do, too. I thought the DT880s were close to perfection and being neutral. They're like a muddy lake, now. It's quite strange, really.
Postface:
I'm hugely satisfied with this investment. It further cements my belief for audio equipment.
Good headphones can add a quality from 1 to 100. The amp can add quality from 1 to 15. A DAC can add quality from 1 to 5.
That means this setup might be something like 80, 14, 5 = 99 points total. Compared to my previous equipment (FiiO E17) was probably something like 60, 12, 4 = 86. That means a T1 with the FiiO would be 96. Just to show the value of headphones over amps. That's just my two cents. I might not be trained enough to pick up the subtleties of amps, but I still think it's hard to defend that headphones aren't the most important part.
In short, I'm blown away.