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Old 03-13-2019, 03:32 PM   #7 (permalink)
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Join Date: Dec 2009
Location: Kiwiland again

Originally Posted by View Post
Hvac...MRI. Nope! there is a reason they tested it on a tube design. Imagine a military with all silenced guns. Cannons that made no noise. No mention of military applications anywhere in the article.
Or... could be that speakers are round. and that is an easy rig to make, matching a tube to a speaker.
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