The good thing is that everything is very clear and very detailed. But on the other hand everything sounds very dry and lifeless. The biggest problem to me is that the voice is very concentrated to the front...
All that sounds like its coming from excessive treble, either on its own or relative to the rest of the range, particularly the bass, which is harder to hear for a number of reasons - early roll off, lack of air space vs reference coming from subwoofers that pressurize the entire room, etc.
And here is the thing: If I want feel the music I have to make it so loud that high frequencies hurting in my hears. And for some songs I don't even have to make it loud to make it hurt.
That's due to strong treble relative to the rest of the range, plus possibly a peak somewhere that's stronger than the other treble frequencies, usually between 3000hz to 8000hz.
....and the music is like encircle the voice from the side and from behind.
Behind what? Behind the vocals? If the other instruments are being imaged behind the vocals then that's an indicator of better imaging because that's where the other instruments, particularly the percussion, are. The drummer and vocalist aren't inter-dimensional phase shifters as to occupy the same spot in front.
If you mean you can seemingly hear the sound coming from behind you, there could be some kind of surround sound DSP activated on the playback device/source, or it's recorded that way.
I still have to buy a AMP. I will test the Fiio A5 in a few weeks. I hope some things getting better by using it and using the bass boost. But listen without amp should be still making fun, right?
What makes me really confusing is that I am not the only one who changed on a big step like this and no one seems to have that problems, too. So is something wrong with me? Do my ears have to learn to listen hi-res or what do you think?
The DT1770 isn't exactly a Sennheiser HD650 or Focal Clear though.
I would say the 1770 has a deep wide but also blurred bass and excessive highs but very weak mid's.
That's mostly from the response of the headphone but can also be exacerbated by distortion when driven inadequately. I wouldn't think the latter is much of a factor though given the X5III's low output impedance and the DT1770's relatively high sensitivity, but that said I haven't really experienced anything like that since I got a Meier Cantate.2 which cleans up even my strong, sloppy-bass Superlux HD330 (when driven by my soundcard and back up portable amp).
Now their are many people who say the dt 1770 is like a better custom studio and I would love it and that confused me a lot, too. Because in my ears it's the completely opposite.
The Bass hasn't that dimensions but it's harder, more defined and on point.
If you mean the Custom One Pro has harder bass, doesn't that have variable bass setting? if one of those settings has strong upper bass without exaggerating the low bass then you'd hear a harder hit, kind of like on a Grado, although on everything below the RS2 there's a tendency for the Prestige (specifically the SR60 and SR325; not sure with the e-series version though) to have that hard hit sounding a little hollow, like if you stuffed a tom with pillows instead of hitting an actual bass drum stuffed with a pillow.
The mid's are in a good presence, the highs are... well ... tolerable on the low gain option but still not what I'm searching for.
Both of them are very detailed and clear but because of this differences the details I can hear are different. So in the end a complete different soiundprofiles.
Sounds like you should replace the DT1770 with an RS2e or Focal Clear.
I also read a statement at a fiio a5 head-fi review:
https://www.head-fi.org/showcase/fiio-a5-portable-headphone-amplifier.21888/reviews
" The bass boost takes too wide a cut as it grabs seemingly everything below 150Hz and amplifies it too much to be reasonable. To my ear the boost bumped the low-end up a good 6db. The bigger problem is that the boost doesn’t return to 0 db until well into the mids. The bass boost creates exactly the situation most of us try to remove: Mid bass hump that bleeds into the mids. Bass-heads may find this wonderful, for the rest of us, I think you will find the bass well composed with the switch off and likely ignore the bass boost circuit entirely as I have chosen to do once I listened to what it did to the sound signature."
Why mess around with an analogue EQ that you can't customize when you have an X5III? It can run apps like Neutron Music Player so you can customize the width of the effect and the center frequency, plus the curve type.
If you want something that is easier to set up try Neutralizer.
Sounds to me like that bass boost combined with the custom studio can turn things into what I expected...
Or it will make the COP's bass sound like the DT1770's if the bass boost is too wide and too strong.
But one thing I really like to know: On what volume Audiophile's are gonna listen their music? And how you would describe that experience on a?
80dB to 85dB on a 1000hz sine wave (which needs to be calibrated to the same digital gain as your music).
Note that if you want to feel the music you may want to listen louder but that's going to damage your hearing. You only need a lot of power to 1) keep the sound clean for a few tracks you'll crank up for and 2) peaks won't be a problem either way.
If I listen to music I want to be flowed though from its whole power like a rush.of energy. Details are very welcome but not that necessary. The evenness and caressness is more important.
That's not smething easy to achieve since "evenness" isn't something purely objective. I can recommend a headphone that has the flattest response given current tech and most find them boring, if not even bright. Look at the HE400i - practically flat from 10hz to 1000hz, but some people will complain about the tiny peak at 3500hz and another one IIRC at 9000hz as "too bright" and "booooooooooooooooooring."
Chances are what you're looking for is the Grado RS1e, or at least the RS2e. Or given you want much weaker treble relative to the rest of the range, the HD650 on a powerful amp, if not a powerful OTL amp like the WA3 (although from a technical standpoint I'd much rather spend another $100 and get the WA6).
Or just use an equalizer app on the X5. I have my HD600 on denser and thicker HM5 angled earpads plus a low shelf EQ that slightly boosts everything below 70hz, a peak cut that trims 3500hz, and then a high shelf cut that trims everything above 3500hz. Or an LCD-2C with a Schiit Asgard or WooAudio WA6 - bass is stronger than the rest of the range but being a planar driver it does a cleaner job of reproducing the bass.
