Rib Crowned Hamburgs ?

[David Love]

I ask because you had stated previously that it was your opinion that
compression crowning was necessary to achieve the type of tone that you
found to be the most to your liking.  You cited Hamburg Steinway as one
example of that.  Since it turns out that Hamburg Steinway is, as you
report, not compression crowning any more than the current group of rib
crowned and supported designers, I was just wondering if your sentiments
with respect to compression crowning as a requirement for superior tone
production remained unchanged.  

David Love
davidlovepianos@comcast.net 

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of Ric Brekne
Sent: Monday, June 20, 2005 2:52 PM
To: pianotech
Subject: Rib Crowned Hamburgs ?

David

As Ron reminded, and has others have stated many times before Rib 
crowning are not mutually exclusive, and in this case obviously both are

present. To what degree is another matter. They just dont use the method

of drying the panel to very low EMC's to get there, opting instead for 
pressing in a caul with a greater curve then that found on the ribs.

In any case my opinion of their tone quality of course remains 
unchanged, and I fail to see why it should be affected.  I simply 
reported to the list my observations for everyones own edifications.  I 
do this all the time, and most often it seems manufacturers are drying 
out to very low EMC's to gain whatever compression levels they want. 
Seemed only fair to, in the same spirit of curiousity and non-biased 
interest, report this experience as well.

On a side, they confirmed what John Patton said to me a couple years 
back, that in New York they dry to 5 - 5.5 % EMC before ribbing. 
Otherwise they follow similar methods.

Cheers
RicB

-------------------------

Now that you know they are rib crowned and not compression crowned, has
that changed you opinion of their tone quality?

David Love
davidlovepianos@comcast.net <mailto:davidlovepianos@comcast.net> 


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