Kuzma 4Points and Lyra carts

Dear @herman  : No one can't argue almost nothing against an audiophile subjectivity and I respect a lot your opinion as the opinion of other gentlemans.

I have " thousands " of first hand experiences ( I could think similar to you. ) and longer tonearms always looks so fine against the shorter ones and along that many listening sessions could tell us the longer tonearms makes a better quality performances with any cartridge but through the years I learned that that " dream " is not totally true and for very good reasons ( not subjective ones. ).

Even that some people as fsmith does not like but SAT designer is rigth on this regards, please read carefully here:

https://swedishat.com/SAT%209%22%20vs%2012%22%20paper.pdf

Additional to all those in a longer tonearm its effective mass/inertia moment is higher too than in a shorter one and that mass goes from static to Dynamic mass during playback and the whole cartridge is " seen " that more heavy mass ( from counterweigth to headshell) in dettriment not only of the quality of sound but against the cartridge it self.

Now, the in theory advantage of lower tracking error  could be not a truly advantage against all those but by numbers not you not @karl_desch or any one else including me can't really be aware of it due to its very low differences after calculations.

Here using LÖfgren A alignment numbers says:

Average %distortion:  9" = 0.43%     11" = 0.34%

Max Error°               :  9" = 1.9          11" = 1.5

Max distortion% between null point:  9" = 0.64     11" = 0.51   


Groove after groove the distortion level is changing and from one groove to the next the differences are only 0.03%: no one but a bat can heard it so we can't be aware of it groove after groove no matters what. Nera the null points that differences of distortion goes down to 0.00...%

So from where comes that " subjectivity " advantages of the longer tonearms? from the higher developed distortions ( any kind. ) generated by the longer tonearms.

Yes, this is a different point of view but we have to stay conscious of what really is happening down there.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

we have to stay conscious of what really is happening down there.

to a point... , that is all well and good, the math is interesting, but as you know there is ultimately only one thing that matters... how does it sound?

No amount of theory and opinion and debate is going to tell me how it sounds in my system. I am fortunate enough that I can afford to just buy one and try it so that is what I'm doing

thanks for the input

Dear @herman  :  "   but as you know there is ultimately only one thing that matters... how does it sound? "

I agree with you and posted something similar in the last post.

Again what we like is what matters but some of us that analize those numbers that say a lot of things ( not the kind of sound we coukld have. ) can  discriminate/select in better way our decisions and the why's behind those decisions.

Anyway, you got my point: appreciated.

R.

And please let us know what you think when your 4point14 is installed and playing.

I will continue to think about the 4point 9 versus the original 4point, 11”.

Dear @karl_desch  :  "  Will the higher effective mass of the 4point 11 work better with the Etna SL?


About resonance frequency the 9" mate well with Etna SL but the 11" goes out of the " theorical/ideal " resonance frequency range .

That does not necessary means that is a wrong mate the 11" but with some recordings or some kind of TT generated vibrations even coming from speakers could be some " trouble ". Maybe never will appear that " trouble ".

With the Soundsmith both tonearms mate well.

R.