![]() ![]() He and most of those who listened to the comparison liked the harmonic envelope in the piano with the diaphragmatic board and that is what they introduced to the market in about 1998.Īs they were introduced I had models with and without the board side-by-side. He went through many proto-types (the luxury of working at the factory) and found that the diaphragmatic board produced a different set of harmonics when compared to an identical piano with a standard 5mm or end-tapered board. Diaphragmatic soundboards were an integral part of the design. He worked at the YC factory designing the piano and the machines used to make them. ![]() At the time YC was in its prime, and was likely the world's 3rd largest piano maker. ![]() He worked with Young Chang to developed the original Pramberger line of pianos. In 1996 Joe Pramberger came out of retirement (he was the VP in charge of manufacturing for Steinway for 27 years). I'm going to have to disagree with you on this one. Its main value is in separating money from an unknowing buyer. I would not call it significant except as a talking point. I doubt that anyone could tell by listening whether there is a diaphragmatic soundboard or not. What does this marking signify? I can't seem to find any info on it online. Is that just like an ID number? Isn't the serial number enough for identification?Īlso on the harp (at the far end of the piano, opposite of the keyboard/action) there is a fraction followed by a letter and then a number (5/3.L 994). I've also noticed a different number along with the serial number, X3377, which is also stamped into the wooden pieces of the piano but not the harp. I've found the matching serial number on just about every wooden piece that detaches from the piano body (the legs, the pedal block, the music desk, parts of the action, etc). On the cast-iron harp, I've noticed that the serial number isn't raised like I've seen on other instruments instead, it is stamped on the frame in the usual location in black ink. Being that it's my first Steinway, I have some questions about the markings throughout the instrument itself. It needs some work but at the price I obtained it, I'm willing to put the money into restoring it (needs new strings, probably need to get the action rebuilt too). I'm thrilled to have recently come into possession of a 1919 Steinway M (it's 5'7" long, but doesn't have a model letter on the harp). ![]()
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