List Members A customer with a 1970's Steinway D #442772, is thinking about installing Renner hammers. He's looking to improve the power in the 5th and 6th octave. He is happy with the rest of the piano. I don't think he will get the power he's looking for, but I don't have that much experience with the D and hammer changing. Has anyone done this with Renner's and did you get the desired results? Paul Chick
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