I notice the cable has one red connector, one black connector. The convention is usually red for right, whatever's left is.....left.

Nice one, they're also easy to 3D print, I have a model in Thingiverse for anyone to use. https://www.thingiverse.com/thing:2156747

Where are her legs?

Very similar to the driver in my ATH-6D - https://www.head-fi.org/posts/13902207/

It's not always necessary. It depends how hot your iron can get, rhodium is a bit harder to solder to, it needs a higher temperature and the solder won't wick as far so needs holding at temperature longer. But if the iron can't go high enough then it'll just blob and not flow.

They're so light there's little weight on the head and a lot of the support comes from the large pads, so the headband isn't really noticeable.

No it's made from scratch. Grado inspired maybe. Some aspects remind me of Spirit too.

I just bought a set from their Etsy shop https://www.etsy.com/uk/shop/HylandHeadphones using the discount offer in the link from their facebook page https://www.facebook.com/Almakesheadphones/ Have added some pictures of my set in the gallery...

Heater filaments

Hi Viber, coloured dot is signal (+) side, non-coloured dot is ground side. Even if this particular headphone is 'the other way' it doesn't matter, so long as you do the same on both drivers, then they'll both be in phase. Solder the wires to the outer tabs only, the inner tabs are for the coil...

The seal is important, I never got a good seal with the stock Beyer pads either. I use 70x80mm on-ear pads mounted via DIY 3D printed pad plates ( https://www.tinkercad.com/things/fyQmuWijsKW ). I use them a lot, maybe 3rd most used after the T70 and 770. They match the T70 for overall sound...

Beyer was the first thing I thought when I saw the diaphragm. Looks and feels well made. I'd stripped it down to check for hairs on the diaphragm, found two stuck under the outer rim, a bit of a trap for them. Very thick damping wad between the driver and the rear, open via holes in the back...

Audio Technica ATH-6D Liked the looks, good bass, not so much detail, opposite of the Sony DR-Z6.

Audio Technica ATH-6D

Beyerdynamic owners untie...