It has been awhile, so going off memory…but I only had issues w/the 820 when I didn’t have a proper seal. Outside of that issue, it performed inline with the HD800 (when you have a good seal with the HD820)
It has been awhile, so going off memory…but I only had issues w/the 820 when I didn’t have a proper seal. Outside of that issue, it performed inline with the HD800 (when you have a good seal with the HD820)