Absolutely none! The cups are larger than Sundara, extremely comfortable. I don't have the HD599, but the HD598 ( almost identical to 599 in physical dimensions) and they are also very comfortable.
Yes, the clamp is somewhat loose, but it doesn't fall off with normal head/ neck movements ( they will if you're into headbanging)
All the planars I have/ had has slightly loose clamp compared to Sennheiser HD5XX/6XX series.
Don't worry, you can use Deva for hours without any discomfort. They are slightly heavier compared to 598, but much lighter to Audeze headphones.
But the cable is really thick and heavy. I replaced it with a dirt cheap aux cable from Amazon ( <10EUR!!), problem solved.
Hifiman finally managed to make a headphone without QC issues, there is practically no driver mismatch. And the single ended balanced connection does work, checked with the cheap
dual TRRS cable and a 3.5 male to 4.4 female adaptor with Topping A90's balanced out (significant volume boost without touching the potentiometer)
Don't know why hifiman is not selling a single ended balanced cable, the beleivers of the balanced> un balanced camp will surely buy them.
This headphone is really special, it looks different, wired differently, can be used as wireless headphone. SQ wise typical hifiman budget planar with a hint of warmth in the midbass. Perfect pairing with the typical dry and sharp THX amps, the slight warmth has a beautiful synergy with THX razor sharp character.
Even at 15-16K INR it's a great deal. HD560s possibly is in the similar price bracket. But I somehow find them little hard to drive ( not the volume, but the quality)
It's also excellent for the price, but it's too clinical,too precise..more like a tool for mix checking.
How is soundstage & imaging ? is this somewhat bright ?
Soundstage is above average ( not K712 like) imaging is really good. Typical realistic planar timbre.
Yes, possibly slightly bright, but I love this kind of signature. Use any typical ifi audio amp. It will take care of the brightness.
