Strikes me that there's two key things at stake here, i.e.
- MQA
- DTS X etc.

Ref MQA, sounds like this will require a new plug in card. If that's the case, can we please have one that is compatible with 861 units back to the v4, as I'd be very interested.


Ref DTS and the other surround formats. The impression that I've been given is that the key required changes are probably:

- Sufficient processing (CPU) hardware to support any increase in calculations. Do we actually know there that it will be more complex? Sure, it's a new format, but doesn't automatically mean it'll be more complex.

- New firmware software for the unit to support what is potentially three new formats.

- New output boards to support additional speakers. Clearly the existing 861 can already support 7.1, i.e. 8 channels. Will it be as easy as just stuffing more output cards into the same chassis? If that is what's required, it there sufficient space and power to support the additional cards?

Would be interesting to know answers to the above.

861v4/ID40/LPS, HD621, Roon, BAT VK-600se, Impulse Ta'us. Director/Heed Canamp with HD600s.