Hi David, The best explanation is at www.wapin.com or 1-800-835-4757 as given in the ad in the May Journal. p 9. There (web site) you will see a configuration of 3 bridge pins (across the length of the string) instead of the universal staggered two. I have tuned one wapinized piano and was impressed very much. It was an SnS M and the extreme treble was a dream, or like you always dreamed a treble could be. The Wapin bridge pin configuration has a patent so there should be details at the Patent Office. Being patented you have to pay a royalty to install it. However since most patents to "improve the sound of the piano" may vary with experience, much experience is needed with the Wapin. If the treble can be improved in all pianos like I heard in the M then we will see a treble Wapin in all pianos in the future. I am contemplating trying it on my own grand piano (Conover Cable 1920's) if they give approval and a break on rates for partial conversions instead of full. ---rm ----- Original Message ----- From: David Love <davidlovepianos@earthlink.net> To: Pianotech <pianotech@ptg.org> Sent: Sunday, May 18, 2003 11:21 AM Subject: Wapin Bridge > > Can anyone explain to me what the principle of the Wapin Bridge is? After > reading so many posts on bridge design and function, I'm wondering what > kind of design could make such a difference. Is there any real research to > support the claims of increased or enhanced tonality? > > David Love > davidlovepianos@earthlink.net
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