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Damper Types
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| Over Damper. | Awaiting Photographs. | Over Dampers are as stated over the
hammers and in 99% of cases rely on gravity as the damping force. This
is very inefficient for two reasons. One. The dampers are close to the
edge of the string, not a good place to dampen the string. Two. Gravity is insufficient a force to efficiently dampen the strings. |
| Under Damper. |  | Under Dampers are positioned under
the hammers and use springs as the damping force. This puts the damper
near the middle of the string. The springs are graded to help match the
damping force with the force of the vibration. This is the preferred method and is the method used in all new upright pianos |