Just to be clear on definitions, on axis only means that the mic is not angled, rather it's perpendicular to the sound source- of which would be the flat "face" of the speaker (not the angle of the cone). It could still be edge of dustcap, edge of cone, center of dustcap, etc. For these clips, I'm assuming it's edge of dustcap on axis or center of dustcap on axis, not simply "edge of dustcap" or "on axis" as both clips are on axis. I only say this because in my experience I think clearly defining what each one means is pretty important, as small changes in angle and position can yield large sonic results.