Mage1243
New Head-Fier
Those AZLA look interesting but I always suspected it would tame a lot the air frequencies because of how they're made. There's too much foam surface after the stem ends.
I just found this Foamax comparison graph, even though its for N5005 but you can expect a somewhat similar effect on Z1R (pretty much aligned to what I hear - tame the treble a bit and clean up the low end)
Source: https://www.youtube.com/watch?v=UJaPDpD2baA
Yeah, if the same happens on z1r as n5005 the foammax change the response quite a lot.