What is you tonearm’s Maximum Distortion?


I’ve been playing around with different cartridge mounting, as a Grace arm the plinth of my Lenco cannot be mounted at the recommended pivot-to-spindle distance of 222mm (closest it can get is 225mm).


My best figures in theory seem to be:
Max. Tracking Error: 3.51 degrees
Max. Distortion: 1.21 %
Average RMS Distortion: 0.73 %

This is with: P-t-s 225mm; overhang 11mm; offset angle 19 degrees.

What are your figures for your setup?

fusian

Dear @fusian  : I don't know which kind of alignment you are trying to use.

 

Löfgren A/baerwald ( IEC standard. ) gives you a little lower distortion levels : 0.61% and 0.4% respectively with maximum tracking error 1.78°.

Now, it's not easy to be aware of the true quality differences you are listening between that average distortion 0.73% and 0.4%. To be aware of it your room/system has to has a very accurated high resolution and " educated " ears.

 

Regards and enjoy the MUSIC NOT DISTORTIONS,

R.

 

Right now I am using the HiFi news test LP protractor, just because it is handy. Does anyone know what alignment it is?

And I am mostly curious what the figures are for the tonearms of folks like you? Just because this is a new area of exploration for me and it might help me get a better overall concept of what is going on and how important the numbers are.

My ears are pretty good (professional orchestral musician who is a bit obsessed with tuning perfect intervals, including overtones). But my listening room has never been really ‘tuned’.

Does anyone have their tonearms’ figures, re: max. distortion % and max. error degrees?