Was listening to the BBP some more tonight and that bass sure is flabby. But the connection is good with no skipping like Senn users report.
Forgot I had an Azio BT adapter laying around (AZiO BTD-V201 USB 2.0 Micro Bluetooth Adapter; it has Aptx). I added that to my PC (Windows 7) did some more listening. Same outcome.
What does flabby mean?
I am afraid that the v201 does not support Aptx.
Only the 400 and 401 do.
Or did it come with the CSR Harmony Software?
I'm pretty sure I won't like the H8 as I prefer neutral sounding headphones and the H8 seems to be bass boosted. In any case they are on ear and I generally find on ear uncomfortable. Much prefer over ear that are large enough to actually be over ear.
Never tried a 4.0 headphones with a 2.1 source but I could understand if that did lower the quality a bit. And the Note 4 is pretty much at the top of all bluetooth sources (no aptx LL or aptx lossless but nothing internal afaik does).
Did you try the Phiaton Chord MS530?
On Ear bud big and very soft pad. Comfort comparable with the Bose Soundlink On Ear (the most comfortable on ear on the market).
Balanced sound.
Then the Samsung Level over, Over ear, very comfortable, balanced to warm sound.
I've just tried the Meelectronics Matrix2, and I mean just. Out of the box, no EQ, is balanced, tending to a fresh sound. Bass is not boosted but gently present.
Range is excellent, really good. But the bass, when boosted, is imprecise, boomy. If you boost it just a bit, and only above the 60hz, it is ok, not particularly clean but ok, and for my tastes the boost is needed. But if you boost more (like what I would need being basshead) the bass is too boomy and a bit distorted. And if you dare to boost anything under the 60hz you think you have another headphone on your head, because the quality becomes like a fake Barbie Headphone with paper drivers for 3 years kids.
So, it should be quite good for you, considering that you do not like boosted bass.
The soundstage is decent and the detail also. I mean, decent. Not excellent. The highs, when boosted, do not sound very precise, and at one point reveal sibilance, but you will not need to boost them because the sound out of the box is already fresh enough.
Then, what with the AKG K845BT? Did you try it? Balanced and fresh like the Matrix2 but with 10 times more detail. Soundstage still just decent. Bass does not become very powerful when boosted, and sub bass is just very gentle, but at least no distortion.
Guys, I have tried the AKG Y45BT.
I may keep them as second pair, as portable one.
They are pretty darn good for being so little and relatively cheap (125 Euro).
The sound is, out of the box, relatively balanced, with a little accent on the mid-lowmid, which does not reach the muddiness. And btw also the ATH-WS99BT have an accent on the mid and low mid out of the box. Nobody is perfect (but the ATH are almost perfect, at least to me).
I prefer the out of the box sound of the H8 or the Fidelio. But the Y45 are still ok and I think that after a while one could get used. But personally I feel they need EQ. For those seeking a balanced sound, some subtractive EQ will do well, taking away from 750 to 200hz with a deepest cut on 300 or 400. For the bass haters allergic to any little bass boost, maybe (not sure) it would be needed to subtract till the 100hz. I personally cannot believe that somebody who would do that can exist, but, who knows.
For those seeking a more funny sound, besides the subtractive cut is also needed some boost on mid-bass and sub-bass, and on mid and upper mid and low highs (with higher point around the 5000hz). At least for my ears.
With EQ the bass can reach actually a very surprising power for something so little. It is not so deep and wide and clean like Fidelio and H8, but reaches a 75% of it. Which is very good. I mean, the 75% of amazing is very good.
Actually I would say that the Y45 as overall sound reach between the 70 and the 80% of the quality of the Fidelio and H8.
I could describe them so: put together the "worse" parts of the sound of the Fidelio and of the H8, the less detail and harsher highs of the Fidelio, the less extended and a bit darker bass of the H8 and also their lesser loudness, mix them together and decrease the overall resulting quality of a 10%, putting it in something smaller and lighter and cheaper (almost the half of the Fidelio, and 1/4 of the H8) and with BETTER wireless range. And this is the Y45.
Now, I know that the "put together the worse parts and decrease the whole of a 10%" sounds bad, but, once again, consider the quality of those 2 Headphones, and that "worse" is meant when comparing them to each other.
So... I personally think that they are quite good.
I would not suggest them as ONLY pair, unless you are on low budget. But, as portable pair, for quality/price/dimensions, they are maybe the best option at the moment.