Well, this is also not a problem for
Dali iO-12.
Above, I drew your attention to the fact that Dali iO-12 has other advantages.
Do you care about wired connection?
Dali iO-12 have three options for wired connection:
1) This is a passive connection mode via a 3.5 mm jack.
Dali iO-12 are in the off state. Like your usual wired headphones LCD2.2 pre fazor or Denon D7200, a 3.5 mm jack is used. Dali iO-12 do not activate the internal electronics. You get in Dali iO-12, only what your audio system transmits.
2) Active connection mode via a 3.5 mm jack.
A 3.5 mm jack is also used. Dali iO-12 already activates its internal electronics. In this connection mode, the processing of the internal electronics of Dali iO-12 is already added to your audio system.
3) Active connection mode via USB connector.
In this connection mode, you can connect Dali iO-12 to any USB output of audio equipment and get bit-perfect accuracy of transmitted data. This can be a DAC, streamer, PC, mobile phone.
In this connection option, the internal electronics of Dali iO-12 are also involved.
See the screenshot below.
And finally.
Recently, I have sold the following full-size closed headphones (from my personal collection): HIFIMAN HE-R10 Planar Version-Stealth Magnet, Denon AH-D9200, Sony MDR-Z1R.
Beyerdynamic T5 (3rd Generation) will be put up for sale soon.
I am well acquainted with the sound signature of the following excellent closed full-size headphones, which I did not buy because the sound signature did not suit me or the comfort of using them. These are headphones such as: Dan Clark Audio Stealth, Focal Stellia, Dan Clark Audio E3, Meze Liric II, Sennheiser HD 820, Fostex TH-900 MK2, Audeze LCD-XC Carbon.
ZMF Caldera clos, here's a pause for now.
Surprisingly, circumstances do not allow me to listen to them under normal conditions before a possible purchase.
Dali iO-12, I bought in 2023 and they essentially outlived all of these wonderful headphones I listed above.
As of today, Dali iO-12 are positioned for me as the main closed full-size headphones with various options for their use (almost every day use). I am very pleased with the Dali iO-12, they are worth every penny I spent.
If you like the sound signature of the Dali iO-12, you get a unique closed full-size headphone with good sound quality and comfort when using them (this is just a Hi-Fi pearl).
Good luck!