new iem meta 
trend good audio with in ear is almost timeless. does your ear ear shape change with trends? baby linsoul needs more billions$$$$ just deform your ears asap, rearrange your skull as well when you are at it and become henry cavill . He is misleading newbies to fill his pocket and most people believe him (i used to worship him 3 years ago) because there is no certification to be an audio reviewer, just say what you like is correct and project to others and profit and you will be believed because you listened to iems sent to you for free for a long time. if you wanna be as objective as possible like a real reviewer should be but youtubes way of monetization and company-reviewer relationship (as a billionaire give a free penny to the guy who starves for a penny , he would advertise it for you happily and you get millions in sells profit, but wait crin made so much âpenniesâ now he is a new âlinsoulâ ) in any industry wont let anyone be you would claim top tier tuning is when you match the tuning to your ears hrtf and it doesnât change with time unless you get older, but you wouldnât profit as a reviewer by mentioning that because if any person puts the effort to find the best sound to his ears and discovers its magic the industry would demolish and fall.
also tilting defuse field is nonsense because df is measured when you get sound with no specific direction playing at you, basically a sound field with equal sound pressure where sound comes from all directions and doesnât get cancelled, boosted or absorbed by the objects (the cause of tilt) with the way you usually replay songs with 2 channels far field so tilting df really wont work(if you want transparency of course) and wont match the hrtf around lower mids that is very similar with most people and this results in stuffed and muddy sound, look at the pic below , all within 1 db difference at 200hz but the amount of gain or treble is very personal and varies massively.
basically in all his vids he tilts the df to his likings calling "nobody likes flat, nobody wants that, nobody nobody⌠" and adds 10 db bass on the ad vids to showcase how good the tuning matches his likings therefore its the best .every single reviewer does this projecting btw, without trying to be at least as neutral and objective as possible where you can actually be in an area which is similar with almost all people (lower mids to 500 600hz area).
basically this thread, but this time the mud is shown on 5128 instead on 711.