"Straight" talk

@clearthink wrote.

" Example: when we change VTA/SRA the AZ changes too "

It is obviously apparent from this claim that Raul is not well informed about the intricacies and standards involved with properly installing and aligning a phono cartridge/tonearm assembly as part of a Music Reproduction System or there would be no way Raul would make this claim.

You observation is ONLY correct if you are talking about linear tonearms or tonearm without an offset.  Basic geometry tells you that cartridge azimuth will change with a change in pivot height due to the fact the cartridge stylus is not in a direct line with the pivot i.e. offset tonearm/headshell. 

If you need to visualize the effect, assume that the headshell offset is 90 degrees.

Hey Testpilot thanks for the 90% example. Takes all the subjective out of the equation. Here is one example of black and white which the debate is over. Now will the poster get it ???

Stringreen, I am basically agreeing with you about the value of correcting azimuth.  On the subject of the Foz and its wonderfulness, I am not qualified, because I do not own one, and I do not fully understand how it works. I do know however, that there have been some complaints about it.  One possible problem I recall was a claim that it becomes inaccurate if there is even slight decay of the voltage coming from the battery.  That didn't quite make sense to me (because integrated circuits such as the ones that must be used in the Foz will generally work fine so long as the power voltage is approximately Ok), but that's what more than one person was claiming.  

Lewn...yes I know the battery issue is bantered about.   Its really not nearly as critical as has been posted.  Never-the-less...you really only have to do the proceedure once or twice ...and then a week later to absolutely assure yourself its correct....then take the battery out and use it in your fire detector while awaiting your new cartridge in a few years.

Dear @stringreen : """  The point is that even a "bit" off is off. It sounds good, but not when care of adjustment is carefully fineallized. """

You are rigth and agree with and with the critical importance that AZ has in the quality level during playback. 

" Perfect " AZ set up means that the cartridge will pick-up truer grooves information  and  with stylus tip as the Replicant 100 in your cartridge the set up is a must to care about.

As I said the role of any single cartridge set up parameter is critical but it's almost imposible to have all of them exactly at the rigth set up due to its inherent dependent relationship  and the LP surface imperfections.

As @lewm pointed out any one of us can be as anal we want on several audio subjects, like me that I am almost obssesed to mantain distortions at minimum and of course that a precise AZ set up is important for my targets but in audio and especially in analog audio we have to choose for the best trade-offs that can fulfill each one target.

I'm with you.

@testpilot , thanks to put the ligth on tha issue, I always say that each day is a learning day for each one of us. Not all of us have exactly the same knowledge levels.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

 

 Re