[basch]

I had a Yamaha that had a dtsx firmware addition upgrade after it shipped. Not sure if it wasnt ready at product ship, or some way to avoid licensing fees, but I dont know how they would track who upgraded as it wasnt network enabled.

Sennheiser Max has a full computer and os running inside, they can upgrade it quite a bit. Biggest limitation on the device is HDMI 2.0 preventing 20gbps video passthrough of hdmi 2.1, however they should be able to add new audio codecs.