Understand and agree, but the Soundstage measurements were made at NRC and the Axiom chamber attempted to duplicate the NRC chamber characteristics IIRC so rightly or wrongly I guess I expected the two chambers to be "more comparable than most".
If you compare the M2 measurements from NRC with, say, the M40 measurements it's clear that bass extension does get measured. I agree that the measurements can't be regarded as accurate (presumably the issue is that behaviour below 80 Hz is more like typical in-room than anechoic ?)
http://www.soundstagemagazine.com/measurements/axiom_m40ti/All that said, the apparent difference is very small and I agree that no such change has been announced or leaked, so I guess I'll take two placebos and call you in the morning
