Difference between vented and fully closed iems - Page 2

Where is the vent? They certainly don't isolate as if they're vented.
 

Quote:

Originally Posted by Kunlun 

The coppers are vented, all the monster line are. It's just not an obvious vent. Same with the Atrio.

 

The man who designed the Monster turbine, KwKarth is an admin on head-fi.

 

You have weird ears. They "shrink", and you have muscles inside them. lol

Quote:

Originally Posted by Selenium 

Where is the vent? They certainly don't isolate as if they're vented.
 

 

No idea, just know from the guy who designed them that they are. Same with the Atrio, can't find the vent, but a person who works there confirmed that they have one, too.

Quote:

Originally Posted by Angelopsaro 

Yeah, small tricky ears with the ability not to allow silicone tips for a long time. Slowly my ears' muscles throw them out.. I mostly use foam tips..

That's exactly how she described it. I guess if I want to get her IEMs they need to be very small in size.

Yeah, silicone tips pushed in deep or too large can compress while put in, then expand and cause a nasty suction effect, like a suction cup.

Try the smaller ones or larger ones with a shallower fit.

A vent usually brings in more bass presence due to the added air movement and extends stage width as well. The bigger, the more of each.

I think the OP is probably talking about the pressure effect from suction. It might go away with different types of tips.

The thing about having a vent versus not having a vent is that the IEM was designed from the very beginning with one or the other configuration in mind. It's not so much simply adding bass or removing it with the vent, but more that the presence of the vent affects how 'springy' the air is inside the IEM chamber. ie: In a sealed chamber, the pressure inside the IEM will resist compression when the driver moves in by pushing it back to the null position, and when the driver goes out, the sealed chamber will try to suck it back in.

This is called the Q factor of the speaker. When you introduce a vent, that lowers the damping factor of the air inside the chamber and normally introduces a hump in the upper bass that sounds more bassy - but actually the roll-off of the IEM is made worse meaning it can't hit lower bass notes as well. Conversely you can create the opposite effect by sealing off a vented speaker. Thats how the vent for IEMs like say the IE8 work.

Here's a better explanation of everything I just said which I just found as I wrote this haha. http://audioroundtable.com/forum/index.php?t=rview&goto=61833&th=12315

Its pretty interesting stuff.