After I aligned my cartridge with the MintLP Best Tractor, inner groove distortion vanished. Dynavector XX2 on a KAB Technics SL1200 MK II.
You might consider this tool.
You might consider this tool.
If the cartridge is aligned correctly, then it is correct. There are different systems but, so are there on record cutting machines...
If you have done this then the fault must lay else where, the complience of the cartridge must match with the arm. As the record nears the end, any discrepency will result in distortion, if you play a record with large transients you will hear it more as the cantilever struggles.
I really urge you to check this.
I would assume that a Clearaudio Virtuoso was made to match with a Clearaudio Satisfy tonearm. When I received the table, the tail end of the tonearm was low, but I raised the VTA to make it parallel. Maybe that's one of the issues. Although I did notice an improvement in sound when I adjusted the VTA.
I've printed several charts from the Conrad Hoffman alignment program, but I'm not even sure which one to use. There are standards for DIN, IEC, and "Typical". It will be interesting to see which of these alignment charts closely matches the chart that was provided by Clearaudio. Any suggestions on which one should be used?
I don't really see a need to spend $110 right off the bat when there are free alignment tools out there. The Conrad Hoffman tool seems very nice. I'm going to try that tonight, but I still don't know which standard for inner and outer groove radius should be used (DIN, EIC, etc.). A MintLP has to go by only one of those standards.
If I am still unsuccessful with these tools, then I may consider a MintLP. But until then....
I would start with 222mm as the pivot to spindle distance and Lofgren B since you have inner groove distortion and leave the rest as default. The arc is customized for your geometry. After this, I would work on VTA. You can fold a piece of fine gragh paper to rough horizontal as a starting point and then do the rest by ear. BTW where is your dealer in all this? Did you buy this online?
I printed out several charts using 222mm as the setting. I was able to find that from Clearaudio's website. I will try using Lofgren B. Is there any particular reason for using this? Why would this resolve inner groove distortion?
As far as VTA, I have that spot on. I've used a ruler to measure the accuracy.
I purchased this setup from a member on Audiogon, so I don't have the option of going back to any dealers.
you will always get some arc distortion of some kind with a pivoted arm. what you are doing is trying to minimize it as much as possible. Once you print it out you will see that the Lofgren B grid is innermost. From your description, I think that is where your alignment is off. since you bought secondhand, there is the possibility that your unit is defective. use lots of light and magnifying glasses. there is a certain satisfaction in empowerment learning this on your own.