Hello Bruno
I just had an explicit answer from Savarez concerning their KF Strings:
They say the density is 1,7, which means that they are more dense
than nylon, so they will be thinner for the same tension, thus a
nylon 40/100 is equivalent to a KF 33/100.
They also say that strings called "Carbon" by other manufacturers are
in principle produced from the same materials, but the thermic
treatment which effects elongation and molecular links and therefore
flexibility, can be different from manufacturer to manufacturer.
This is a loose translation and should not be considered as engaging
Savarez in any way.
I hope that additional information may be of help.
Best regards
Anthony
Le 16 aout 07 =E0 05:18, Bruno Correia a ecrit :
> Hi Anthony,
>
> Thank you so much about by enquiry. I suspect the KF has a similar
> density to the Pyramid carbon (pvf). It's curious that Martin does
> not use them on the other courses... Do you have his e-mail by any
> chance? I'd like to ask him a few questions.
> I'm not pleased up until now with whatsoever string brand or
> combination of materials on my lute. At the moment I have carbon
> from the first up to the fourth and then nylgut basses with
> octaves. Actually, I like carbon for many reasons but unfortunately
> the strings are very thin because of their high density which leads
> to less presence than nylgut.
>
> Best wishes.
>
>
> 2007/8/15, Anthony Hind <[EMAIL PROTECTED]>:
> Dear Bruno
> Martin Shepherd was particularly suggesting the use of KF on the
> 5th course of a Renaissance lute. This is what Jacob Heringman
> sometimes uses combined with nylgut on the top courses, and gut
> diapasons below ( http://www.mail-archive.com/[email protected]/
> msg19947.html). I don't know why he does not use KF on the top
> courses, but I imagine it may be they are a little less bright than
> nylgut. I would advise you to ask Martin Shepherd directly about that.
>
>
> I have an old Savarez catalogue, and I have tried to compare across
> examples of stringing of various instruments in Nylon and KF, sorry
> there are no examples of carbon, as such. There is no comparative
> table in the catalogue, which seems strange, and comparing across
> examples of stringing of actual instruments gives only a very
> approximate equivalence, as the other strings used can also vary
> slightly and contribute something to the overall tension.
>
>
> It seems that compared to nylon the KF have a greater weight by
> unity of length (same as carbon I suspect), as where on a 13c
> Baroque lute, strung to give an average tension of 2,7KG, at
> diapason 415 Hz, the first course at Fa-F is given as nylon
> diameter NN40, it is KF 33; the 2nd course at RE-D is given at
> NN47, but KF41, the third course at LA-A , is given as NN60, but
> KF50, the fourth at FA-F is given as NN74, but KF66.
> From other instruments, I find the following approximate
> equivalences, but these can only give a rough guide. Someone in the
> list may know the exact density value. If you would prefer, I can
> try to ask Svarez the answer, but I expect they would answer to an
> English message ( [EMAIL PROTECTED]).
>
>
> Looking at other instruments, I find the following substitutions of
> nylon for KF (but again, the other strings do not always remain
> absolutely identical, so these substitutions can only be an
> indication).
> NN40 : KF 33
> NN47 : K41
> NN55 : KF43
> NN60 : KF50
> NN64 : KF52
> NN68 : KF57
> NN63 : KF52
> NN74 : KF66
> NN100 : KF86
> Perhaps you can work out an average comparative rating from this to
> apply, to other values, which might be close enough to reality to
> be used as a working hypothesis. I expect you can easilly find an
> equivalence between nylon and Pyramid Carbon, so that could be a help.
> I am sure others would be interested in your experiments, as I do
> not hear very much about these strings. They may not be suitable
> for all courses, but Martin Shepherd seems to have experience with
> many string types, and the fact that he finds KF very good, at
> least on some, would be a good recommendation.
> Best regards
> Anthony
> PS I sent a message to Savarez, but it is the 15th of August today
> (a French national holiday), so I doubt whether I will get a rapid
> reply.
>
>
>
>
>
>
>
>
> Le 15 aout 07 =E0 04:34, Bruno Correia a ecrit :
>
>>
>>
>> Dear Anthony,
>>
>>
>> Reading your message I became curious to try these strings by
>> Savarez. Unfortunately my French is very poor. Do you know by any
>> chance the density of these strings? Are they similar to the
>> carbon strings by Pyramid?
>>
>> Best wishes.
>>
>>
>> > I would be much in favour of more research into synthetics that
>> come
>> > closer to gut. Martin Shepherd told me that Savarez KF strings are
>> > close indeed to having the best properties of gut, http://www.mail-
>> > archive.com/[email protected]/msg19947.html
>
>
>
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