Pros: Clarity, Tonal balance, did I said Clarity? complete accessories out of the box
Cons: Worst cable ever, insertion depth has to be precise, sub-par build quality
Even with P to S adaptor, still deliver great bass. fast, precise and great texture. And one of the deepest bass I've heard coming from BA driver.
Overly compressed/brick wall record sound really bad with ER4-P/S.
Albums like Metallica- Death Magnetic; Biffy Clyro - Puzzle
They all sound very teeny-tiny, messy, harsh with ER4-P/S.
On the other hand, proper produced albums with great dynamics like
Everything from Kate Bush, Steven Wilson - Raven refused to sing.
ER4-P/S able to reproduce the production magic. Everything sound sooo tight yet very punchy.
This gotta be the most uncomfortable IEM I've ever come across(Ultrasone IQ being 2nd worst)
Very long and very heavy cable, if it cling and pull to something while you walk on the street.
With deep insertion of those triple flange.
warrants your ear canal in pain.
I am not entirely sure but I am about 85% sure the ER4 will be dead in a year.
Luckily our local distributor provides 2 years warranty.
ER4 just looks like it build to break, unless you are using it in a controlled indoor environment 100% of the time.
-Not so important factors
The pouch is good, plenty of accessories out of the box, able to switch between 4P to 4S easily given by the free adapter.
Great price to performance ratio given by the performance you are getting from ER4.
I know I said many negative things about ER4 but I am still giving it a solid 5 stars.(I would give it a 10 if I could)
Just because the SQ I am getting from it surpass everything else I am not satisfy with.
If you like fast and precise and neutral tone and you don't mind your ear canal hurt once in awhile.
This is a must have universal IEM.
By the way, I buy the P version just because I will use it with my iphone.
skeptical about iphone not able to drive the S version.
Well, I was wrong. iPhone giving out more power than I thought it could.
And I much prefer the sound signature of 4-S over 4-P.
4-P has too much bass in the bloomy frequency, overshadow the treble. made it sound kinda muffle compares to 4-S
I am going to get a 100ohms replacement cable to change the 4-P to 4-S permanently.