Question on VTF (What should i adjust it to?)


Hi Everyone,

As I continue to proceed down the sinkhole that is Analog Audio.  I was checking the specs on the Cartridge and they specify a range of .3g as what is right.

Me being really analytical and obsessed with what is right, where should one start on setting their VTF to?  I split the baby in the middle and added .15g to the min and have it had it that way since. But now I am thinking should i move it up or move it down?  What should i hear with over and under proper value tracking force?

Thanks as always for the help,

K
kro77

Showing 3 responses by lewm

Mijo, We don't disagree, but I was not referring to involuntary reflex arcs or the manifestations of mental illness.  I mean, when your wife asks you, "Does this dress make me look fat?", you have to wonder why she thinks it might.  I was really wrong to take off on noromance's advice about VTF.  The most common case in audio is the difference in SQ between copper and silver wire.  Yet, they really do sound a bit different, because there is just no way to control for one's bias in that case.  If you look at the audio signal that has passed through copper vs silver on a 'scope and analyzed for bandwidth and distortion, I doubt you would see a particle of difference.  (Haven't done it, so don't know.)  The retort for that observation is there is more to it than just bandwidth and the kinds of distortion we can easily measure.  This allows us to go on thinking there is a difference between silver and copper wire.  (And I admit to being one of those.)
Funny how "low" VTF gives a "lighter" presentation, while "high" VTF (within the recommended range) gives a "heavier" presentation.  And yet some people will argue there is no such thing as subconscious bias.  No insult attended toward you, noromance.  I just couldn't help noticing.  Black components sound "dark".  Silver chassis's sound airy.  Gold chassis's sound warm and rich.
If you hear mistracking on transients or complex musical passages, then tick up the VTF about a tenth of a gram.  Otherwise, what compels you to worry about it?  Also, what tool are you using to set VTF?  If you use the classic Shure SFG, it is not accurate within the range you are concerned to remain within (+/-0.15g), in my opinion.  To feel confident about differences in VTF of 0.1g, you will need a good digital scale specifically designed for vinyl, where the weigh pan is set down as close as possible to the veritable surface of an LP.  There are many available ranging in cost from ~$30 to more than $100.  The low cost ones tend to measure down to 0.1g. The higher cost ones tend to at least display down to .01g.  (Whether they are actually accurate below 0.1g is another matter.). Others like the "Riverstone", which is about the same price as a Shure SFG.