It’s the same measurement rig, but we do have it set up somewhat differently. I’ve been comparing with him for a number of measurements and they all generally look pretty close - at least within unit variation tolerances. For FR, there shouldn’t be that much difference, I know he’s measuring in a mall but that doesn’t really impact FR that much when testing at sufficient volumes. With the Sundara, I measured both the old and ‘new’ revisions before, back when we had the old EARS rig and not the GRAS, and this did show an important difference. Same rig, same environment for both units (I had three units total, two old and one new).
So really the question on my mind is, which is old and which is new. Chronologically for us in NA, the better measuring unit was more recent. But this could also just be stock allocation, and what we’re calling ‘new’ here could potentially be the old one. But this wouldn’t line up with any other reviews chronologically either. So I may just need to get another unit and test that.
If you’re wondering, I’ve measured the other channel here as well:
And lastly, we also don’t know how old the Z & Co demo unit is. I’ll see if Crin can find out.
EDIT: Looking more closely at Crin’s measurement, I’m actually uncertain if this is the previous version. This is almost close enough to this one that it explains the differences - and that’s definitely not as bad as the previous revision for bass roll-off and midrange unevenness (we’re talking on the order of 5dB deviations for the old one, and both of these aren’t as bad). I mean it very well could also just be unit variation that accounts for all of this, and maybe this one unit I have here is the lucky one. I’ll see if I can get another one in to confirm.