The bass is not at a bass-heads level but it does go low enough and is not lacking quantity or quality. The overall sound is balanced.Yes... there is such a thing. (its called "nodes" - resonant ) Lets take the larger room...
Direct radiation versus room reverberation cues in a bigger room will hover at deeper frequencies (the bounce back)
So when you lower the volume there, you have a component of "echo" that has more energy in that region , reaching you, eventually...
In the smaller room you sit 2m 80 cm from the front plane of your Buchhards. They are a closed design, with a large rear radiator.
There you listen to more direct radiation, sort of the "beamed sound" if you will. 1 m away from the wall is ok. But sometimes one can try to sit up against the rear wall in the listening chair, usually this results in a deeper percieved bass power. or reach. (What this does, technically is alter reverberation timing of said «echo» and thusly percieved Energy in a frequency band, however narrow or wide)
I have tried the speakers closer to the wall and the seating position back to the wall, before and after room treatments and found the better sound was when the speakers were 900mm to a metre off the wall and the chair out from the wall.
I’ll give it ago again and see what changes and the compromises.
@Holmz
Equalising has been mentioned a few times @Holmz and can look into if the component's have this ability.
If the components have this feature, what is the achievement goal and which steps would you try first as I have no experience with this?
Yes, your presumption is correct, I do live in New Zealand.