The HiFiMAN Sundara is a well-balanced offering at its current regular price of $499 and an outright steal at its current asking price of $349. Like other headphones from HiFiMAN in their planar line-up, you get brilliant bass performance and a midrange that is top of the line.
The tuning for the Sundara is a bit too treble happy for our ears, but since they are still relatively linear, equalizing them is an easy task. Some people will probably enjoy the slight treble boost, but we are probably more in favor of the tuning the Edition X exhibits out of the box.
Comfort and durability seem to have taken a major step forward with the Sundara. Sound quality is still brilliant and impossible to fault at the current price point. If you appreciate near-perfect bass rendition and a very refined midrange, the HiFiMAN offerings are still the ones to beat, and with the Sundara, you get even more value for money. While still expensive, it is worth mentioning that the recent drivers from HiFiMAN are becoming easier and easier to driver well; any decent entry-level headphone amplifier will be able to power these very close to perfection.
At $499, they would be hard to beat, and at the current asking price, they are a no-brainer if you are looking for a good set of planar magnetics. The Sundara hits the planar magnetic marks, such as great bass extension and control along with a very detailed midrange.