The PMG Audio Apx SE might be the world's best IEM out right now in my opinion. It has every sound quality in spades. Furthermore, the bass on these is sub-bass focused with a mid-bass response that is not recessed nor boomy. It also has one of the highest quality bass responses that I have ever heard rivaled with the 64 Audio Volür. To add to this, the mid-range on this IEM is also very spectacular. There is a very slight warmth in the lower mids which adds body to male vocals & also has a slightly aggressive rise at 1.5kHz which makes female vocals shine as well. Also, the treble response is like a mix between the Sony IER-Z1R & the Annihilator 2021/2023. It is airy but not fatiguing & also has a slightly aggressive low to mid treble peak that is not sibilant and in your face. Finally, the technicalities on the Apx SE is INSANE! It has detail retrieval that is on the same level as the qdc Anole VX, HiFiMAN Susvara Unveiled (with Burson Soloist Voyager Deluxe Amp), Canpur CP622B, Empire Ears ODIN, & the Astell&Kern x Empire Ears NOVUS. The PMG Apx SE also has insane macrodynamics that is rivaled by the Focal Utopia 2020. In conclusion, if you want a very refined 'END GAME' IEM... the Apx SE is the way to go. (Source & ear tips used - Cayin N30LE {No EQ} {Low Gain} {Short Delay Sharp Roll off Filter} {Hyper Mode} {Solid State Timbre} {Volume 11/100} (Spinfit CP100) (Some past IEMs owned for reference | AK x EE NOVUS, EE Raven V2 LE, Canpur CP622B, EE Odin, FiR Audio Radon 6, Elysian Annihilator 2021/2023 Ti, 64 Audio Volür, 64 Audio tia Trió, 64 Audio U12t, Noble Audio Spartacus, & the Sony IER-Z1R.) (Some test tracks | Kali Uchis - Moonlight, Halestorm - Bad Romance, Bring me the Horizion - Kool-aid, Falling in Reverse - Ronald, & Big Boi Kill Jill.)
