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原帖由: molyoski ,

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An even cheaper solution I learned from R/C modeling days is to use an egg carton.  These can be found in 12 and 30-egg sizes, and the supply is practically limitless!

Another good use for the 30-egg size is as sound insulation on budget recording rooms.  The irregular surface makes sound reflection off the walls virtually non-existing.  Try it; works great!

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