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COD_F1sh t1_j6ae5k8 wrote

Reply to comment by dadu1234 in It arrived!! by dadu1234

In the case of IE40 pro the tips have tuning filters/foam inside of them that act as dampeners. Anything except those ruin the sound doesn't matter the bore size.

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dadu1234 OP t1_j6amjdg wrote

has the same tips with the ie300 and also the ie600. it has a filter and foam filter too.

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