A Note About Soundboards: An important feature found in the Steinway is the design and installation of the soundboard. This system is manufactured in such a way that it iws constantly under compression, which prevents the soundboard from relaxing. It is for this reason that compression reidges may occur. Soundboard compression is planned and desirable. Compression reidges are a cosmetic indication that the soundboard has simply absorbed moisture from the atmosphere. Steinway & Sons Technical Service Manual, page 6 Keith A. McGavern kam544@ionet.net Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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