If Sennheiser made a closed back HD560s that sounded basically the same (or at least same tonality, maybe deeper subbass extension, it would probably have smaller soundstage) I’d die a happy man. I currently use the 770s EQ’d to shit when I need closed back usage, but I’d love something that I didn’t feel the need to EQ (like the 560s) and that could be more portable (non-detachable coiled cable on 770 😭 it’s great on my desk but no where else) but still isolate nicely. I think I’d like to try the BeyerDynamic T70 - it’s pretty flat aside from the typical Mount Beyer treble spike

I have the DT770s, Senn 58X, Airpod pro 2, Ikko oh10, and Salnotes Zero. In the past I’ve had Senn 598, M50X, and Sundara’s. I think the “best” sounding I’ve had to my ears are the 58X(I have a very long post about why I disliked the sundara), however, if I had to sell them all except for one, I’d keep the Salnotes Zero. They’re just so good for the price. If they had just a touch more bass, just enough to add some more oomph to things like percussion and explosions in games, I would literally sell everything and keep them. The zeros fit so naturally in my ears, and the sound is just good enough to let me enjoy the music, and not so good that I focus on the headphone rather than the music. I think it’s a psychological thing where they’re so cheap that my brain just thinks “they’re not worth analyzing, just enjoy it” and boy do I enjoy it.

Edit: I can’t live without the AirPods transparency feature at my office job though lol

I think that's the biggest bass shelf I've ever heard of lol... love it. Sometimes you're just in the mood to shake the brain with a little bass rumble. Stay warm tomorrow!

Yeah I did a quick gaming test with them with the Squad realistic war sounds video on YouTube and then I played a little bit of Red Dead 2 and didn’t feel very engaged.

Ooo I’ll look into them!

I'm using a Topping Dx3 Pro+ which should have enough power and is said to be very transparent, which may not be a good thing for the Sundara!

I don't have much to contribute to this conversation but I just wanted to say that those headphones look beautiful! I'm glad you were able to find something that really resonates with you :D

Like someone else mentioned - that glossary is great. Here's my own quick rundown:

Soundstage: the perceived physical space the sounds seem to fill up. In all headphones, soundstage is a bit of an illusion. Generally, open-backs (no covering behind the driver, the headphone allows sound to leak out the backs and/or sides) have a bigger soundstage because the sound is able to actually leak out and surround you. Bigger doesn't always mean better - the Sennheiser HD820s is known for its class-leading massive soundstage, but to some people it sounds TOO wide, and makes it feel artificial. For others, the size makes them feel more immersed.

Tonality (or tonal balance): with regards to music, the sounds travel along certain frequencies that are associated with different types of sound. You have lows aka bass, mids, and highs aka treble. I think you'll understand what bass is; mids typically are associated with vocals; highs are things like cymbals. A headphone is considered flat, neutral, or balanced when no one section of the sound dominates the other. You'll eventually see frequency graphs when exploring this hobby; note that no headphone will ever have a completely flat line. There will always be dips and peaks.

Impedance: an engineering term, basically the higher the number the more power-hungry the headphone. Higher end headphones typically require more power, and thus need dedicated headphone amps to get the proper sound signature and volume out of them. Impedance is measured in Ohms. Typically, under 50 ohms, no amp needed. Around 100 is medium strength, amp not needed but could affect sound quality. Above 250, amp absolutely required to get any real volume out of it.

You'll hear lots of words used to describe tones in headphones. "Warm" means louder bass and mids, quieter treble. "Cold" means the opposite. "Bright" typically is used to described when treble is so loud that it is harsh and sharp. "Sibilant" is related to bright; sibilance occurs when the S sound has that really nasty sharp sound to it. "Detail" is basically how much miscellaneous sounds you hear besides the main sounds of the instrument, and is associated with clarity (at least in my mind). Imaging, related to soundstage, is how well the headphone allows you to pinpoint where a sound is coming from i.e. upper left, bottom right, in front of you, behind you, etc. Resolution, afaik, is the same as instrument separation - how well you can separate the sounds. When a headphone is "fast" it means each individual sound resolves itself very quickly, there isn't much bleed over between sounds.

That's all I can think of right now, the glossary can teach you more. Also, most of these terms can be kinda shaky and BS and imho the feelings that are evoked from sounds and music matter much more than these attempts to quantity subjective experiences (sound) with imperfect language.