HiFiMan Sundara (2017) vs NAD VISO HP70

The HiFiMan Sundara (2017) has managed to impress reviewers from two reliable and objective sources that conduct their own testing, namely Popular Mechanics and Gear Patrol. It did great in their roundups - it earned the "Ranked 1 out of 10" title from Popular Mechanics, and "Ranked 2 out of 10" from Gear Patrol, which marks it as a product that's worth considering.

Moving on to the NAD VISO HP70: no sources that perform reliable and objective hands-on testing have included it in their Open-Back Headphone roundups, which usually means that a product doesn't make for a good purchase.

We tried doing a direct HiFiMan Sundara (2017) vs. NAD VISO HP70 review score comparison but couldn't find any sources that tested both.

Next, we took a look at which sources liked them best and found that the HiFiMan Sundara (2017) most impressed the reviewers at Head-fi, who gave it a score of 9.3, whereas the NAD VISO HP70 did best in its musicphotolife.com review - it scored 10 points.

Lastly, we compared their review averages and found that the HiFiMan Sundara (2017) did much better than the majority of its competitors, with an average review score of 8.7 out of 10, compared to the 7.8 overall average of Open-Back Headphones in general, whereas the NAD VISO HP70 hasn't managed to perform quite as well, with an average rating of 10.0.