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Foam / blanket , what Hz?

Guest Bret

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Does anyone know about what frequencies were affected by the acoustic blanket or foam defraction rings and at approximately what distance from the driver?

I'm wondering if a speaker like an AR-17/18/4/6 might benefit from an application of "transmission line felt" around the tweeters to the extremes of the cabinet face.

It couldn't hurt to stop the cabinet from re-radiating, could it? Is that one of the changes you hear when you apply the grills (a smaller reflection)?

Has anyone tried such a thing?


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