H40's default tuning bring a lot of bass/sub, so trebles are poors players of the game... It's like a subwoofer in your head !
Eq them and you've got a really great IEM : great impact, dynamic, equilibred, detailled, great separation. I like them a lot !
CA16 are really under them no doubt. First, there is the CCA/KZ tuning (mid bass bump, peak near 2k). They lake something in treble aera. Details are here but it's lake life.
EQing corrected some defaults but they don't play H40 level....
Fit is good on both. H40 are heaviest and a little more big, when you put them in your ears, they can't fall even if you're shake your head in all directions.
Frequency response, my rig not accurate after 6kHz (same level setting on both, you can see that CA16 are harder to drive.)
CA16 equalized....
No, I never hear them... But A7 is king of separation and 3D effect, H40 is king of live listening. Not same fun.
FYI, I barely equalize A7, just lower around 2K. Tuning is great.