While we wait
@AcuDefTechGuy to tell us about the new Yamaha AVRs there is something coming from D&M soon. CEDIA show is in couple weeks time and it would be perfect place to show new models. The spec sheet does tell much about what has changed and will we see X1850H plus X3850H too?
The new numbering makes sense if you think that X4800H & X6800H has longer life cycle so they probably introduce X900 serie all models together at 2028 with HDMI 2.2 . The Masimo D&M guy said don´t expect X4900H anytime soon.
Specs:
