Okay, maybe I didn't state my query precisely enough. I would call sharp/round and thin/wide design issues associated with termination, similar to angle of deflection. Hard/soft is associated with materials and their treatment, but again a termination issue. Plate ring/internal damping has to do with the plate being acoustically inert - taking as little vibrational energy as possible from the string. At any rate, all the sources I have heard from who seem to speak with authority seem to be in agreement on this. And I can't see that the metallurgic differences between v pro and cast iron would affect acoustical inertness. In which case, as a choice of materials issue, it would boil down to hardness of termination. And v pro seems quite good from that point of view, at least in my limited experience. Am I missing something here? Fred Sturm University of New Mexico Richard Brekne wrote: > > Well, lets see,,,, there has been discussion about internal damping > charachteristics, plate ring, differences between hard /soft -- sharp / round -- > thin / wide termination points.... to name a view of the issues that have been > thrown around. > > What gets me is that absolutly none of the factories are willing to give you any > real hard data about the different types of plates.. > > Fred Sturm wrote: > > > jolly roger wrote: > > > Acoustically it may be noted that > > > companies using the V Pro process, will also sand cast the plates of their > > > premium models. Draw you own conclusions. > > > > > > Roger. > > > > Roger, > > This really puzzles me. As far as I can see, the only acoustic function > > of a plate is to provide good termination where there is a capo (leaving > > aside design considerations like angles of deflection). Other than that, > > it's function is purely structural. I can't see where minor changes in > > composition would have an acoustic affect on anything other than > > termination. Do you? Might the reason they sand cast premium models be > > the fact they don't need enough of them to be worth the enormous set up > > expense for v pro? (My understanding is v pro is less expensive > > somewhat, but only with high volumes.) > > Fred Sturm > > University of New Mexico > > -- > Richard Brekne > RPT, N.P.T.F. > Bergen, Norway > mailto:rbrekne@broadpark.no
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