Ok, I couldn't wait any longer, and since I also ran into an offer of a fellow head-fier from Germany selling his Aeon C, I had to go visit Beyer at their factory a bit earlier than planned, because I had to decide first, whether I'll get a Beyer or the Aeon...
Timing was also perfect, I was a single customer there today, had plenty of time to test and compare...
I'll start with this: I have not been disappointed that badly with a piece of gear in many years as I was with the Amiron Wireless. I was holding high hopes for it to be an end game headphone in wireless and actually mobile as well. A MASSIVE disappointment. Momentum Wireless (with EQ) easily wins. I don't understand how Beyer could release this product. It has some really massive flaws. Ok, no higher treble, but this can be EQed. Muffled and too warm. Also can be EQed to some degree. This headphone is all about mids. But this is not an actual problem, nothing what an EQ couldn't fix... But what an EQ can't fix - it sounds like a plastic cup. It has so severe resonances, you can't even go past a certain volume, because the echo would be too much to listen to. The Amiron wired is on a contrary an ok hp, also rolled off highs, but some might like it. I see why some people might like an Amiron wired, but Amiron Wireless is a complete no go for me, a massive fail.
Now to the positive part of this visit: T5p.2 is flawless. It could be a bit more comfy as the ear pads are just a bit too small for my I guess somehow larger than average ears. But this is the only critic I have on them. They do sound more like an open phone, have a real 3D imaging. I wouldn't EQ them at all, they are just about as good as it can get to my ears. A bit on a warmer side, and they do have bass.
In order to calibrate my years at the outlet, I brought my K550 with me, as I don't trust my memory. This is also a good reference phone, as it's pretty lean but on a bright side, and it does have a beyer peak, even though it's an AKG. In direct comparison, T5p is considerably warmer, with less harsh sounding treble, but at the same time with a better resolution. As I've already said, T5p's tonality is spot-on to my ears.
At the end of my listening session, I've taken one of their T5ps home as we agreed on a very reasonable price.
Although I really had high hopes to finally ditch all that cables and mobile amps and replace this all with a nice high-end wireless Beyer, it seems that hifi and wireless are still not really compatible as of yet. I do enjoy my Momentum wireless that I use in the office, but it's not exactly what I call hifi neither. But for the purpose (office gear) it's also almost a perfect fit, I don't need all that resolution when at work. I need good isolation, a pleasant tonality, good quality and comfort for hours of use...
I will be using my T5p indoors at home, when not sitting at my stationary gear. A closed hp, so that I don't annoy my wife with all that noise coming from an open hp, when she is e.g. watching a tv or reading something in a close proximity
-alex
), and I listen at high volume levels too.