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Custom Molds Question

post #1 of 10
Thread Starter 

Hey, I was wondering how much people's ear canals differ? I find it hard to believe that two random people could not trade their custom molded IEMs and not have a good seal. Or am I wrong? Excuse my naivete. I'm new at this.

post #2 of 10
Unless you trade with your doppleganger, there is difference in people ear canals. Small error in ear impression can lead to a bad fitment.
post #3 of 10
Thread Starter 
Do custom molded IEMs require a tip (e.g. a Comply tip)?
post #4 of 10

No. Hence the "custom molded" description. The mold is formed by an ear impression which covers the outer and inner ear canals/cavities.

 

However, universal or generic IEM that's based on the CIEM (custom) will have silicon and/or foam tips.

post #5 of 10

And... When done correctly a CIEM isolates better than a universal.

Before I bought mine I did extensive research here on head-fi and weighed the pros/cons and one of the biggest hit-or-miss issues with CIEMs is the fit. Some have to be re-fitted. Some never get it just right. I was lucky enough to get a perfect fit right out of the gate and have to say the fit and isolation is a definite step-up from my UM2 universal.

So please don't form an opinion by trying on someone else's custom because you will be disappointed.

That's the only drawback... You can't tell your friend: "Man these sound good... Try them"

post #6 of 10
Quote:
Originally Posted by RingingEars View Post

And... When done correctly a CIEM isolates better than a universal.

This may or may not be true...

Jim
post #7 of 10
Quote:
Originally Posted by AstroTurf View Post


This may or may not be true...
Jim

Jim.
I've read on here conflicting statements about CIEM isolation too which is why I wrote "when done correctly". I guess it could depend on ones ears too. YMMV as it were.

My new CIEMs isolate quite a bit better than my UM2 using comply tips. 

I guess it depends on a persons experience with customs(not quanity. Quality).

I'm far from being an expert, but my 1st jump into customs has been a great one and I don't think I could go back to universals. I should have done it a long time ago.

I do feel bad for the ones that could not get theirs done just right because when done correrctly they're nothing short of awesome.

post #8 of 10
Quote:
Originally Posted by RingingEars View Post

I do feel bad for the ones that could not get theirs done just right because when done correrctly they're nothing short of awesome.

This I whole heartily agree with.

 

The challenge is in getting them right.

 

Until the Human Manufacturing Factor can be removed, It is a bit of a Crapshoot.

 

The specs for Etymotic sound isolation can be found here: http://www.etymotic.com/ephp/epcomp.html

 

Perdy Hard to Beat this level of isolation.

 

Jim

post #9 of 10

35-42 dBs? The Etys isolate better than most ear plugs.

post #10 of 10
Quote:
Originally Posted by RingingEars View Post

35-42 dBs? The Etys isolate better than most ear plugs.

Yes, It is a great design.

 

Jim

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