I don't mean to sound complainy in my posts -- I love this thing overall -- but some of the problems I and others have mentioned are becoming more and more noticeable and annoying as time goes on.
The hum from the pixel shifting component is quieter than earlier models and is usually constant, but not always. Sometimes it stops and starts every 10-15 seconds which makes it very noticeable. I've resorted to enabling Silence mode (and applying the calibrated Cinema mode settings to it) to turn it off, which I think effectively makes this thing a 1080p projector for SDR content? HDR content still engages HDR10 mode wherein Silence mode is not toggleable, but the noise seems to be constant in that mode, which is fine with me. It's like the component has a hard time staying engaged for non-4K content, resulting in the noise stopping and starting as mentioned.
The noise and flickering from the Dynamic Iris opening and closing, as first mentioned by someone else here, is similarly annoying due to its randomness and frequency. I've turned that off for SDR content and haven't decided if I want to keep it on for HDR.
The last problem I'm having happens once every 3-5 boots, where it seems like something doesn't start properly. Usually about a minute into booting, there's an audible click and the colors kind of "snap" into sync. Prior to that click, they look a bit off. But sometimes that click never happens and it results in the colors rapidly and repeatedly shifting and it affects the entire picture. Rebooting it temporarily fixes it, though I'm curious to see if it stops entirely now that I've turned off the pixel shifter.
I have an email chain with support and they've offered me an advanced RMA once they have sufficient stock, but I'm no longer sure how many of these things are isolated problems impacting only some units, or how many are problems with the product in general that simply aren't being noticed by some people. I'm admittedly very susceptible to audible and visual oddities and a lot of people aren't. I know some people aren't bothered by the hum of the HT2550, and others don't even notice it, but for me it made that model 100% unusable. But when I had that, it had none of these other problems, so I'm hopeful they can be fixed for this model.
Last edited by 2L84U; 04-14-2019 at 07:11 AM.