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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo’s Midbass Project – the grown up time.
Post Subject: Earlier in This ThreadPosted by Paul S on: 9/22/2010
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Romy, Bill is spot on about water condensing into droplets on plywood; I have seen plenty of this on patio covers and under porches and subfloors, for instance.  It could happen when the warm, moisture-laden air (from inside the house) that is inside the horn meets the colder plywood.  If this can happen outdoors where the temperature differences are minimal, it can certainly happen indoors where the temperature differences are greater.  Of course any "exposed" metal would exacerbate the exchange.

But you already had the options laid out for you earlier in this thread.  Either you insulate the horn, or you insulate and "condition" the attic, at least the part the horn is in.  That's about it, I reckon.  Success without doing either of these things would be plain, dumb luck.

Best regards,
Paul S

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