Originally Posted by DunMunro
The HT9060 has a light source that can display DCI-P3 without a WCG filter, unlike the other two projectors mentioned by the OP. It's hard to believe that the HT9060 would take any appreciable hit when displaying DCI-P3 content. The only published review of the HT9060 doesn't note any loss of output with DCI-P3. 20FL is still quite bright.
2ndly the Helmholtz-Kohlrausch effect raises the perceived brightness of LED light when the colours are fully saturated.
That review does not mention a lot of things. When you calibrate HDR mode, you lose brightness with the HT9060, per a reviewer I trust. You lose almost the same percentage as you do with an RS2000. Note I was using the manufacturers gain spec, which I think is a little high and the projector at minimum throw. The BenQ would do better than either the Sony or JVC, brightness wise until it got too dim. None of these projectors would be my recommendation for a 0.8 gain screen at 143" or larger size. The BenQ is rated at 20,000 hours, we do not know if that is using high or eco. Projector Central lists it for eco mode, but if we assume it is high, then we have.
1,600 hours calibrated new
20,000 hours 800 calibrated lumens
10,000 hours 1,200 calibrated lumens
5,000 hours 1,400 calibrated lumens
2,500 hours 1,500 calibrated lumens
These are numbers without counting any loss for HDR mode. 1,400 lumens on a 143" 0.8 gain screen is 18.4FL. That is not enough brightness for HDR, even with good tone mapping. 1,500 lumens gets you 19.75FL, still not enough brightness for good HDR. You might get better numbers than this, but you also might get worse. I am just using the manufacturers spec on light loss and assuming best case scenario. Remember, I did not allow any lumen loss for HDR and this is for shortest throw. The RS2000 might only work for 500 hours, so it is not an option for that size and gain screen either. Though you could buy a new lamp and get your brightness back, but a new lamp every 500 hours would be ridiculously expensive. The Sony would be just as bad, if not worse.