Hi Tim. This goes back 6 months, so things may have changed. I was very keen on upgrading my SE speaker tweeter array to a BE array, after hearing the Ulfberth BEs. At that time, Eric said it wasn’t possible (SE specific). You may want to check with him. Plus, he should be in the best position to describe the differences between the standard and BE tweeter array.
Let us know what you find out!
Let us know what you find out!