<html> <body> Dale, Kind of ironic that you'd post this right now. Les Bartlett posted on the caut list about a tuning problem with a Petrof. And I have a tuning appt. with a regular customer next Tuesday who has a 7' version. Avery At 05:48 PM 12/8/05, you wrote: <blockquote type=cite class=cite cite="">   Return-path: <Erwinspiano@aol.com> From: Erwinspiano@aol.com Full-name: Erwinspiano Message-ID: <5b.774ebbef.30ca1fcd@aol.com> Date: Thu, 8 Dec 2005 18:46:21 EST Subject: Re: Petrof Quality To: Erwinspiano@aol.com MIME-Version: 1.0 Content-Type: multipart/alternative; <x-tab>        </x-tab> boundary="-----------------------------1134085581" X-Mailer: 9.0 Security Edition for Windows sub 5300   Well I actually wasn't done with this post but sumpin happened.    In conclusion The Tone was strident due to some version of European Petrified Renner hammers & The beech bridge caps already show significant signs of splitting around the bridge pins. The tenor bridge was solid beech then the upper treble was capped but it wasn't fairing any better. Now this piano has been in our mild & envious California climate so it's not climate abuse.   Any other opinions & experience with this brand out there.  I frankly have liked the tone & especially the sustain of these pianos, at least in the past ten years but this one was a pure disppointment.   Dale Erwin. <dl> <dd>Listers <dd>   After a recent encounter with a 10 year old 6 ft. Petrof ,my once fairly high opinion of them has sunk. I generally have liked the sound of there bellies & the workamnship looked good but  I had the following experience. <dd>  The action although upon examination had a nicely done 5.3 overall action ration the touch was extremely heavy high 60's down & below 20 up. The problem is that the hammers were just way to heavy for example Note 16 was 10.5 grams. That's  hammer wt. not strike weight. <dd>  So extrapolate those heavier than normal readings thru the rest of the  scale. <dd>  Since the desired service was to make it play more like a Saturn than a truck  & no parts were being changed the original parts were used. The remdey was to  add one lead to a sparsely leaded keyboard  & then adjust the wippen springs. Even at that the average down up weight was around 56 to 22 up which is a 39 balance weight. <dd> I believe  the real solution was a lighter set of hammers & subsequent even leading applied with springs detached to some higher than normal nominal number down/up numbers & then re -tweaking the springs. for a light bit of wippen weight removal from the system. <dd>  This to me was a prime example of a nicely done leverage set up that was doomed from the git go due to extreme hammer weights It seems  all grand piano actions fall within certain reasonable & typical leverages that when exceeded are problematic until rectified by appropriate counter measures. </dl>  _______________________________________________ pianotech list info: <a href="https://www.moypiano.com/resources/#archives" eudora="autourl"> https://www.moypiano.com/resources/#archives</a></blockquote></body> </html>