Not actually that brutal at all, I thought it would be interesting to compare KEF's excellent LS50 passive model to their LS50 'wireless' active version.
The measuring microphone position was in the MLP ( main listening position ) and was not moved. Each loudspeaker was measured at 50cm from the rear wall 100cm from the rear wall and 150cm from the rear wall,each speaker at least one metre from the side walls.
Above are the measurement plots for the LS50 passive, green is 150cm or 'free space'
magenta is 100cm away and blue 50cm away from the rear wall.
Above the LS50 active verion, in the same three distances from rear wall,...