Originally Posted by New24K
Again, as far as I am aware the only differences between the UB820 and the UB9000 are that the UB9000: has a better build, has better analog outputs; and two more (6 vs. 4) peak white settings that work better for older projectors...
Other than that, the video quality of the two is the same.
If I have all comments on these models from Kris sorted, the main ub9000 image management difference(s) were for the benefit of the JVC NX series. Differences ...
1) automation of the color filter via choice of the 500 nit option (auto filter off) or the 350 nit option (auto filter on). The 500 nit option can be adjusted to engage the color filter, and the filter can be disengaged under the 350 nit option. So this feature is a user friendly short cut which can be overridden.
2) the ub9000 500 nit vs 350 nit optimizer tone mapping options, on projectors or other lower nit range displays... While the 350 nit tone mapping may be a better/needed choice for the JVC NX series projectors, I did not observe any inherent benefit of using ub9000 350 nit mapping versus the ub820 500 nit mapping, on the JVC x990 (rs640), for either SDR2020 and HDR2020 output modes.
3) if I have it correct, Kris in the s&v ub820 review, mentioned when using SDR2020 output mode, the optimizer automatically maps to 350 nits (regardless of the display luminance setting). It is when using HDR2020 output mode, the display luminance setting will offer the 1000 nit, 750 nit, 500 nit and 350 nit (ub9000) tone mapping performance differences.
I believe the ub820 and ub9000 are the same with regard to all other image processing.
I welcome Kris correcting me if I have gotten any if this wrong.