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Universal IEM's: True test of a good seal?

post #1 of 2
Thread Starter 

The standard line is you need to hear a lotta bass to be sure you have a good seal.

 

Foam/comply type tips seem to ALWAYS provide a thicker bass versus silicone.

 

Softened up treble aside, can a comply/foam tip overemphasize the bass?  Or will it always get it "right"?

post #2 of 2

A tip that exposes the end of the sound tube will have some treble dampening qualities... the bass is not affected, only ones perception because of the decrease in treble presence. Foam is not adding anything to the sound, it's absorbing parts of it. That's how I understand it. Perhaps Tyll Hertsons could make a frequency response graph on such a thing.

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