Ortofon Cartridge Experience tour

[Confused]

Confused, given that the cartridges have different outputs, (how) did they level the volume to make the comparison as equal as possible?

Apparently they did a trial run before the first public demos to check the appropriate volume on the Devialet for each cartridge.  Generally they appeared to get this spot on, but at one cartridge switch the volume did seam to drop slightly.  I have read about cable demos where the volume gets tweaked upwards slightly when the more expensive cable is used.  Taking that as the way to cheat a bit, the Ortofon demo did the reverse by dropping the volume with the more profitable cartridge.  In other words, it looked to me like they were genuinely trying to get everything right.