Torture test for a TT rig!


I have less than 200 hours on my Miyajima Shalabi. Triplanar arm, Woodsong Garrard 301.
I am actually hoping that it is a compliance mismatch cart and arm.
Just playing 1812 Overture on the cannons the arm jumped off the record and the sound stopped for an instant!
Sure seems like the cart is not tracking.
At least I now have a torture test!
And I am getting “clipping-like” distortion. Especially on the fuller tones of a singer.
Cartridge/Arm mismatch? Is compliance the only or main issue?
My VTA is right.
mglik
Dear @mglik : This is the information from your cartridge manufacturer site:


"" Product name Stereo cartridge -Shilabe- Impedance About 16 ohms (About 0.23mV output) Frequency range (-3dB) 20 Hz to 32 kHz Tracking force 3.0 g Stylus Shape nude Shibata diamond stylus Compliance (10Hz) around 8×10-6cm/dyne Appropriate temperature 20-30 Celsius (most suitable 25 C) 68-86 Fahrenheit (most suitable 77 F) Weight about 9.7g Body African Blackwood ""

and from M.Fremer review:

https://www.stereophile.com/content/miyajima-shilabe-phono-cartridge-specifications

he said: 2.5grs-3.2grs.

From where you get that the rigth VTF is 2.3grs. Other Miyajiima models tracks at 2.3grs as manufacturer specs but not yours.

Again, with this very special cartridges the best is to follow the manufacturer spec that’s 3.0grs not what you have. In my first statement in what I posted before you can read about the manufacturer spec: 3.0grs and in my last statement in that same post you can read: 3.2grs as alternative for VTF. 

Now, you are the cartridge owner and maybe you have a different manufacturer recomendation, I don’t know.

Btw, if you stated that " The recommended is 2.3. "" why theset up is at 2.5g.

Somewhere something is wrong or some one is wrong about the rigth cartridge VTF value. Could you explain or put some ligth in this mix-up??
Thank’s.

R.







Well, last time I checked, the VTA was 2.1g. The recommended is 2.3. Just checked it now, it was down to 1.9!Set it right the 2.3 and the full vocal is almost all better.
@mglik  If I'm reading this right, it appears that you might have 'VTA' confused with 'Tracking force'. VTA stands for Vertical Tracking Angle and is measured in degrees. Its often conflated with SRA (Stylus Rake Angle) although the two are a bit different.

If you were referring to your tracking pressure in the above quote, try 3grams- I think you'll find it gets better.
Hi Raul,
When I google Miyajima Shilabi 2.3g comes up but now that I open the page it does show the other Miyajima carts as 2.3 and Shilabi as 3.0!Have reset and the problem is solved... thanks to all.
Sure happy it is not some more complex issue!
Dear @mijostyn : Even that the mglik trouble already fixed and not because I was rigth I want to comment that it’s not true what you posted because even you all have a misunderstood in the overall issue ( for say the least because the word is: all are wrong. ).

""" Both lewm, atmasphere and Chakster are correct. You have to add mass to get the resonance frequency down to 8 Hz. ""

The best test recordings to fix cartridge/tonearm mistracking are the ones where the owner has the problem of mistracking ( not only the Telarc 1812. ).
A professional test LP can’t gives me the solution can’t fix the problem neither the LPs where the mistracking is happening. So who cares of a test LP to fix the mistracking problem?

Lewm said to add 5gr.-10grs. and what happens when with that cartridge/tonearm combination we adds those weigth values: almost nothing because from 12hz ( that’s inside the ideal range. ) " thing " goes to 11hz and this change nothing about mistraking but your advise is even worst because with that cartridge for achieve 8hz ( as you said. ) you need a tonearm with 40grs. of EM and even that you can’t be sure that that Shilabe can track with out problem because the problem was not there.

The other advise is wrong too for the same reason because the counterweigth in a tonearm even that we positioned it far away from the pivot the resonance frequency will change from 12hz to 11.8hz and additional to that this goes against the tracking of any cartridge because the best position for a counterweigth tonearm ( no matters what. ) always must be at the nearest to the pivot we can make the set up.

It’s way more easy for the tonearm to control de vertical/horizontal extremely fast movements when the counterweigth is at " the pivot " that far away from it. Not only JC posted years ago but tonearms manufacturers and professional analog reviewers too. Different tonearm weigth counterweigths are not for change the effective tonearm mass but to try that the choosed counterweigth stays nearer to the tonearm pivot.

I posted all those not to open a new thread window but only to share my " findings " to other gentlemans that even that do not posted here are reading the thread.

Of course that I can be wrong but this is not the subject.

At the end the important issue for the OP is that rigth now he is enjoying his Shilabe one.

R.