sandalaudio
500+ Head-Fier
- Joined
- Jul 6, 2011
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What is a proper seal exactly when the in-ears are open design? There is no sealing I understand, maybe a better fit.
Open v.s. closed is about the back side of the driver. Front side of the driver through to the ear canal tubing is fairly closed (like inside a drum) so a good seal is still essential to help transmit the sound pressure to your ear. The same is true for open headphones like the LCD series. Ear pads must give a good seal between the driver and the ear canal or you lose a lot of mid-bass.
Having said that, in practical use, one major advantage I feel with iSINE v.s. other typical IEMs is how tolerant it is about this good "seal".
All my other BA/Dynamic IEMs are very picky about which brand and what size of tips to use, and they have to be inserted into the ear canal correctly to help "guide" the sound.
Failing to do so means I can hear obvious changes to the sound, such as the frequency distribution becomes tinny, harsh, etc.
On the other hand, iSINE is very easygoing, so the sound is pretty consistent regardless of the size of the tips I chose or the correct sealing. For example, sometimes when my ears feel a bit tired after many hours of listening, I pull the iSINE slightly out of my ears to help relax a bit, but the sound signature does not change very much. I still hear the same amount of treble, mid, bass, etc.
You can always be picky about these things, but the point is that iSINE is a lot more easy-going than the typical IEMs.
Having said that, one weakness of iSINE I noticed is that the driver diaphragms being so big, they tend to sound wobbly when it's moving around. If you want to use the iSINE on the move (e.g. while walking) then you will need a good securely fitting ear tips or otherwise the sound will feel a bit phasey.