D-box is beginning to move back into the homeowner space having neglected it to focus on commercial (theater, etc.) accounts. Last I spoke with them they were planning to restart that market this year, but I have not updated my info in 6+ months so currently have no idea how far along they are in that plan, but they are currently supporting recent releases, including The Batman, Unchartered, The Lost City, Morbius, etc..
The last time I checked (awhile ago) all Kaleidescape players had output that supported Dbox systems. I can confirm that was the case on all M-class players, Cinema One, and Alto, but I have not confirmed with regard to Strato Players (but should be fine). Maybe Mike or John can comment.
Jim