Every action will improve using the OBW’s because of the more defined pivoting point of the key.
The OBW comes in the place of the “normal” felt balancerail washer.
To replace the felt balancerail washers by OBW’s there is a very simple tool, an OBW slider with the help of which you can find the average pivoting point of the key.
Extend your voicing capabilities. The JAHN voicing pliers equips you to achieve the full dynamic potential of a set of hammers.
Weak sections can be strengthened and transition areas or breaks in the tonal spectrum evened out. This is obtained by 'activating' the deeper felt layers which cannot be reached by conventional needling.
The book takes an indepth look at the history, design, and maintenance of the piano, and provides practical guidance to anyone who wants to learn how to tune, repair, regulate, voice, rebuild, or improve the action performance of pianos. The book offers a coherent, unified view of the advancements of the last 30 years.
The book is full of clear, concise, step-by-step instructions, and more than 700 illustrations and diagrams.