Curious to see how this compares to the JBL M2 which is what it makes me think of.
That speaker seems extremely loud and quite accurate. Curious if this is louder, more accurate, more extended, or all three.
I had a brief, few hours long experience with the M2 with Crown amps. So I can not compare them, honestly.
Subjectively the HRE has a kind of limitless dynamics feeling, a liveliness, and scale which is practically unmatched by any of the speakers (and amplification) I was living with (Focal Grand Utopia, Avantgarde Acoustics Trio, Naim DBL, etc.).
It needs room; I would suggest letting at least 3 - 4 m between the two speakers and at least a meter between the side wall and the speaker. 35-40 sqm room is practically the minimum to get its sound right, and you need to sit at least 4-5 m from them.
Using this way, the speaker completely disappears from the room.
It has a 60x60 dispersion, so it can focus the energy on the listener.
It is quite surprising how well its four ways are integrated; it is like a huge single-point source but moves lots of air.
It goes down to 20 Hz and possibly lower and can provide quite a bit of volume between 20-40 Hz, so it puts the floor below the instruments and musicians.