HIFIMAN SUNDARA (Latest Revision) | Planar Magnetic Open-Back Headphones

I have been using this with aftermarket perforated leather earcups on an A&K SE180. Superb sound for all genres so far, and a comfortable fit. Visually quite large. Feel slightly heavy after a couple of hours, but a short break and it’s fine again. Despite the open back, they don’t disturb my wife when she is working next to me at our desk. Highly recommend.

This is my first in to audiophile headphones, but I can at least say from my limited perspective that these are the most comfortable headphones I've ever worn - I've never had to take them off because of discomfort. Kind of wild.

The sound is also just wildly clear and warm - great for music, obviously, but also great for games and movies. Much more drive-able than I was led to believe. PS5 controller is more than sufficient to get them off the ground. Thoroughly recommend.

I I did my research and found these are the best for your in this price range.

I’ve owned just about every kind of headset you can think of from Sennheiser HD580’s and Grado dynamics to Stax electrostatics and even Bose noise cancelling bluetooth headsets. I really wanted to take a dip in the planar waters but was resistant due to the significantly higher price tag of the higher quality offerings. But after reading a lot online comments and watching a number of YouTube reviews, I decided to give the HiFiman Sundaras a try, despite the reputation of Hifiman build quality being less than stellar. Well, after a month of listening to music and watching movies I’m glad to say I just love these headsets. The build quality is excellent. Yes, I wish the ear cups swiveled, but I still get a good comfortable fit and can wear them for hours with no discomfort. The sound quality is remarkable for the price. Vocals are terrific. Well worth its $350 price tag.

The good:
Sounds from mix audio sources (YT, recordings etc.) sound good. It does have a fairly neutral representation of sounds across the audible range but it's not unpleasant, the bass notes are subdued but not unreasonably so. Overall I think it gives an accurate representation of the audio coming from various sources. If you were picking this to listen to a bass heavy track with pronounced or exaggerated low frequencies I would suggest picking a different head set. This does a good job of producing a broad range of frequencies evenly.
Comfort of the earcups is very important, this scores a 5/5 for comfort, the adjustments on the headband are adequate for my head size (I have a bobblehead for a skull).

My DSP source is a Motu M2, sound is OK. I think it could use some EQ but I don't have the ability to tune that with my current setup. Considering it's 32 ohm, it does require a fair amount of amplification from the M2 to drive it.
Construction of the head phones seems good, not too flimsy. I'm not sure how well these would fair as a traveling headset in terms of durability but these seem like nice studio headphones.

The bad:
Nitpicky but the mini jacks it comes with seem flimsy, and initially I had an issue with one of the headphone drivers not producing any sound. I would have preferred mini XLR or some other type of more secure & reliable connection to the headphone itself.
I dock it a point for the cable & connector issue otherwise a great headset if judged from the audio perspective.

Comparable to headphones I've spent more money on for sure! I would suggest looking into getting a better third party cable setup, possibly modifying it to accept mini-XLR.