Lyra Atlas experiences

o-holter, ''As equal to the weight'' (VTF?) will not do because the

other variable is the stylus shape. With low compliance carts I

am satisfy with 60 microns ''pure'' (aka without any distortion from

the right channel). The high compliance carts (MM) will track 80

microns with 1,5 g VTF even without any  anti-skate. So there is

no easy way out  but those test records are useful for at least

some orientation. To put it otherwise: to start with.

The simplest way to check the anti-skate is by ''tracking abiity''

test on the test records. The first distortion will appear in the

right channel. By increasing the anti-skate force the mentioned

distortion will disappear. So much about the causal relation.

However one should not try to get those 80-90 microns ''pure''

because to much anti-skate is worse than no skate at all.

I am sorry but I was provoked by Raul's comment. Nobody mentioned in this thread anti-skate test records. I mentiond the tracking ability test and possible use of this test. What Raul deed is attributing to me statements about anti-skate test constructing this way the known ''stroman''. But tracking abiity test is not an AS test. His confusion of both illustrate his technical knowledge. However this tracking ability test can be used to determine possible probleems with both: VTF and anti-skate.

o-holter, the most so called ''low compliance carts'' can hardly

reach 60 microns on the mentioned tracking ability test. Increasing

the VTF will not help. How would one determmine the right VTF

by ''hearing method''?  Anyway much more easy is to check by

which lowest VTF this 60 microns value can be obtained. The usual

recommendation with 1,5- 2,5 g are worthless in my opinion.

As a person with ''high level of ignorance'' according to our

Mexican oracle I was confused by technical specs of my EMT

SFL 15. According to their own manual the output of this cart

was/is 0,21 mV. But according to some other ''measuring

method'' this value should be 1mV. I then discovered that

different manufacturers specify output voltage at specific

frequency (i.e. 1 Khz) and even at specific speed (say 5cm/s).

For those specs manufcturers use TEST RECORDS either

from Shure or ( by preference) from the famous ''CBS Laboratoris

STR 100''. As we can learn from the Mexican all test records

are for the nitwits. The real knowledgeable people who are nearly

 at his level of knowledge,  not to mention his inaccessible learnig

curve ( more in particular for his English ) depend only on their

own ears.  

andrew9405, You are , so to speak, trying to kill an already

death person. In our endless discussion about the anti-skate

nobody ever stated that test records are the right method.

The problem has nothing to do with test records but with tonearm

geometry and different groove velocity by different record radius.

The only tonearm which addressed this (radius) problem was

Sony PUA 237 and 12'' version. All other tonearms use either

(constant) magnetic- or a weight force on a wire. This issue is

also discussed very recently.

Stringreen, I was pushed to the wrong side of my bed by Raul

and am not aware that I addressed you with any ''mean''

comment. I like you, you know . While we , the Serbian warriors

don't even need any reason to start a war I think that your

attitude against anti-skate is not sufficient to start a war against

you. BTW how deed you succeed to ruin your test record by

your first trial? To much recommended VTF perhaps?  

My samples are still ''going strong'' for longer as 25 years.

stringreen, What about denigrating comments from your (not ''our'')

Mexican friend? BTW he can speak for himself or are you lawyer like

me (grin)?