After spending some extra time with the UM Max versus a few other IEM's, would like to share a few items:
a) The MAX tuning is dependent on sources than the FA Audio Mezzo, Supermoon, Fibae 7U and Madoo 821. Found that I prefer the Astell Kern SR 35 and the AK dongle to y phone vs my old Ibasso 300 , Dragonfly Blue, Dongles from Lotto & Questyle. Found the bass more appealing. At least initially.
b) Tip rolling will be required to find the prefer tuning, did not like the stock tips. The rolling also took time due to the nozzle and a screw on mesh. At least initially
c) Cable Rolling did nothing to signature, so would not bother.
d) Felt the tuning was brighter than expected after doing a short "burn in" of 24 hrs. Reverted to equalizer to bring the bass and reduce the high's for EDM and Western music, had some tracks from some China based artists and found that the tuning work well with some of the female and instrument-based tracks.
Why, of my "At least Initially" disclaimer??.
Decided to unscrew a mesh type element from the nozzle and the UM Max went to
UM MAX!!!!.
Everything became alive and the bass roared back in place with some tracks as Blue Laces 2 -Nipsey Hussle and Kill Jill -Big Boi
Vocals -Strings improved quite significantly with tracks as Obstacle 1-Interpol and Like Exploding Stones-Kurt Vile.
Re-did a few steps and found that tip rolling was less required and wind up using the Spin Fit W1 , also found that tuning became more consistent between sources and even wind up listening to the MAX at work with my phone and BT IFI Blu and it was great.
If anyone has these , would ask them to remove the mesh and provide their opinion. Quite don't understand why would they neutered these IEM's with the screw on mesh.