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That's really great! Thanks. Question, though: When you say "Sheet styrene is used to make the loco an infinite port speaker enclosure." - what does that mean? What is an "infinite port speaker enclosure"? Another question about mounting speakers - I've seen info that says that you need an airtight enclosure over the speaker - is that in BACK of the speaker, or between the front of the speaker and the surface with holes in it where the sound "exits"? Any help would be appreciated. Rob
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