S&S D Duplex

[Farrell]

Dan wrote:
> ....when all other features such as 
> strings, hammers, board, action tuning are correct but the duplex is out of 
> tune, by tuning the duplex the sustain increases from 100 to 300%. That is a 
> tone that lasts 3 to 4 seconds after tuning the duplex scale will last from 6 
> to fifteen seconds.

If the tone only lasts 3 to 4 seconds, what kind of piano is this that all other features such as strings, hammers, board, action and tuning are correct? Sounds like something is broke to me.

Terry Farrell