The earlier series of Petrof grands with model numbers containing roman numerals will coexist with the new models as long as supplies last.Īctions in Petrof pianos are standard Detoa on the smaller verticals, Renner on the larger grands and larger verticals, and either Renner parts on a Petrof action frame or Petrof Original Actions made by Detoa on mid-size instruments. #Petrof piano serial number lookup series# Petrof has also invented and patented a version of its new grand action that uses tiny opposing magnets on the wippens and wippen rail.
These magnets allow for the removal of the usual lead counterweights in the keys and, according to the company, significantly alter the action’s dynamic properties. The new action also furthers the European Union’s stated environmental goal of phasing out the use of lead in pianos. The action is adjusted in the factory for a standard touchweight and is serviced in exactly the same way as a standard action. The Magnetic Accelerated Action, as it is known, is a special-order option on the grands. Petrof also offers as an option the Magnetic Balanced Action, which allows the player to quickly and easily change the touchweight in the range of ±4–5 grams simply by turning a knob. Petrofs are known for their warm, rich, singing tone, full of color.
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