The Theatre - with RoomSense listens to the pre-calibrated output of the BL5 in terms of distance, timing and tonal response. The DSP in the Theatre then applies an adjustment to its own output to “optimise” the combined effort. I.e. Pre-calibration of the BL5 (it’s own calibration pair) when given a flat impulse at a given frequency……..sounds like your BL5 in your listening position. A set of internal reference values in the Theatre then says……”can add/subtract a bit more lower frequency boost” to stay within agreed frequency envelope. That’s my slant on it.

No problem in posting qustions - I guess all interested forum members can learn when other people post questions and (maybe) also get answers. You may perceive the sound from your 5’s - as well as from the entire setup - as different from before….exactly because the BS Theatre takes all speakers and the room in account. Most people say that they think their speakers sound better when connected to the Theatre - however, better/worse is a very personal matter. With the Theatre you have lots of options to tweak the sound to your own liking, should you not be satisfied. I’d suggest to make more listening positions with the same speaker configuration, location etc and then tweak one of those in order to make comparisons. MM