They do state
Quote
The first soundbar in the world to be able to do so.
which implies that it is doing something different to any other PCM ready device.

Cheers
Tom

Main: G61SL, 218, HD621, 2*7200SE, 7200HCSE, M6s, DSW, Apple TV 4K, NUC (Roon server)
Secondary: Wiim Pro, 3200, Audio Core 200
F80