Here is a compression test on a '47 10M. The horn should sound like a drum. It is an indication of the compression your horn has. It is not a critical leak test of high scrutiny. It is simply a bonus you get after doing all the critical mechanical tests. Certainly all repair techs, and saxophonists do this, but I have to credit my friend Matt Stohrer with the original posting of this test. Thanks Matt.
April 15th, 2015
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