In 2- I would have (have) "SpeakerLink on" then you can change the EBA via MSR+ and play with it, toggle on/off to hear the effect.

I have EBA all round most of the time. You can set distance to reduce latency, set EBA speakers further away so the sound sets off earlier.

With a mix of EBA/non EBA I find there is an echo, making the room sound larger. It also makes the imaging less solid. It's not unattractive.

There have been some heavy hints here that the next firmware update will allow for EBA/non EBA mixes, taking latency into account in the processor. Don't hold your breath though. Also waiting for EBA on other speakers (also overdue).

Interested to hear how direct with EBA on compares to Trifield.

SE's! Nice.

(Lovely white 3200s (inc stands) make lovely rears.)
(Personally I think EBA is a significant improvement.)