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NAD VISO HP70 vs Audio-Technica ATH-DSR9BT (2017)
Audio-Technica ATH-DSR9BT (2017)

No sources that perform objective hands-on testing have deemed the NAD VISO HP70 worthy of being included in their Wireless Headphone roundups, which typically isn't a good sign.
Moving on to the Audio-Technica ATH-DSR9BT (2017): it was unable to reach the very top of any roundups from sources that conduct reliable and unbiased testing. Nonetheless, it still managed to impress reviewers from a number of such sites, like Expert Reviews, HomeTheaterReview.com, TrustedReviews, Head-fi, and Rtings, enough for them to include them on those lists.
We tried doing a direct NAD VISO HP70 vs. Audio-Technica ATH-DSR9BT (2017) 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 NAD VISO HP70 most impressed the reviewers at musicphotolife.com, who gave it a score of 10, whereas the Audio-Technica ATH-DSR9BT (2017) did best in its Expert Reviews review - it scored 10 points.
Lastly, we averaged out all of their review data to compare them to their competitors. We found that the Audio-Technica ATH-DSR9BT (2017), with its 8.3 out of 10 points, got reviewed noticeably better than most of its competitors - the average Wireless Headphone score being 7.3 - whereas the NAD VISO HP70 performed worse, with an average of merely 10.0.
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