[quote user="Blackrix"]
I have heard from someone who had the surrounds of his CX100's replaced by rubber surrounds. The did not sound like before, the sounded worse. In case of MS150's I have heard that placing rubber surrounds improved the bass. So it can go both ways......
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I have refoamed cx50 with rubber surrounds in comparing to a pair of c2300 (C40) which I refoamed with foam surrounds the bass of the cx50 are deeper and more powerfull.
The Cx100's I refoamed with foam surrounds, because of the rubber ones the clue surface is smaller than the foam ones. The rubber surrounds i got were smaller