---------------------- multipart/alternative attachment David I wasn't going to get into this but I've followed this thread & I totally concur with your previous post & the one below & have experienced the effects you chronicle below with hard pressed hammers. Usually the difficulty is on older flatter board & my experience has been with Abel & Renner USA type hammers. These older boards often have no use for the kind of hardness inherent in these brands. Even massive needling can't seem to arrive at a tone acceptable to my ear or that of the customer in these cases. One brand doesn't fit all. David I. I tend to agree with you about voicing stability of less "tensioned" hammers holding up. Since they are inherently more flexible,resilient,less tensioned, whatever the middle of the hammer isn't frozen & still acts springy. I've witnessed this at CSU Sacramento in a most dramatic way. 2 Mason As, one with Isaac hammers & one with a Renner hammer. Both in practice rooms side by side both played umteen hours a day for 7 years. The renners have massive string grooves & are worn out & the Isaac barely shows string grooves & sounds great. Both were voiced when installed. One of many experiences with this. My friend Peter Clark is a master voicer. You decide fact of fiction Dale The evidence of different soundboards (and soundboards in various conditions) needing hammers of varying densities is so abundant in the piano circles that I run in that I don't even know what to say to those who are interested in this possibility except try it for yourself and see. You wouldn't put a very hard Renner hammer designed for a Boesendorfer on a piano that would sound best with a Ronsen soft Bacon felt hammer--and there are many such examples out there. A lengthy explanation as to why that might be is more than I am prepared to get into at this point but in as much as new soundboards require different types of hammers (think Yamaha hammers on a NY Steinway or vice versa) so will old ones. An old ugly Yamaha that probably sounded ok with a Yamaha hammer when it was new, may very well sound better with a softer Wurzen hammer now that it's older and responding differently and tends to support my point. The evidence is at least empirical whatever the science may or may not convince you of. While a medium hammer may give the most flexibility to go either way on many pianos, there will be cases where hammers which fall at one end of the spectrum or the other will be the better fit. As far as how long a hammer will last, unlacquered versus lacquered; the issue seems to be how much lacquer and how it is applied. A weak stiffening solution probably doesn't do much to effect the life of the hammer. But since lacquer gets harder and more brittle over time, a heavily lacquered hammer will not last in terms of controllability as long as an unlacquered hammer, assuming it hasn't been needled to death. David Love davidlovepianos@comcast.net ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/05/c4/5d/3b/attachment.htm ---------------------- multipart/alternative attachment--
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