VPI 2nd Pivot for 3D

I dislike unipivots as a matter of preference. Raul dislikes them as a matter of religion.

I dislike parallel trackers. Not as a matter of preference (although the Air Tangent had serious problems) but more for their aesthetic demands (although the Bergmann ones seem to bring B&O design sensibilities to these questions) 🤗

I have no problems with unipivots per se and have owned a few....
The original Hadcock GH-228 was an under-appreciated arm which afforded me many years of excellent sound.
The Grace G940 was cheaply designed and even more cheaply made and was not as good as the Hadcock whilst the Graham Phantom II is simply a pretender of an arm IMO.....
The Continuum Cobra and Copperhead designs (albeit with secondary stabilising sapphire swashplates) are likely the very best tonearm designs I have heard.
The raison d'être for the unipivot design theory is the virtual elimination of 'friction' at the pivot point....and that is something to be taken seriously......

What I really dislike in this hobby.....are ’generalisations’ and ’absolutes’ as most experienced and astute audiophiles know these to be ghoulish....or maybe goulash 🤡

I can't help wonder why there is so much discussion on this.  Raul thinks the single pivot is flawed because it is unstable (wiggle)...the 2nd pivot stabilizes the arm and thus corrects the issue.  It me it sounds better with the 2nd pivot than without.  Done.

With respect to the OP's experience with the VPI dual pivot modification, in case anyone missed it, I agree with him, have two VPI arms that are used interchangeably on my Prime and both have the dual pivot modification.  It definitely is a worthwhile modification for anyone who owns a VPI unipivot arm.  FWIW, one of my arms is a 3D and the other is metal.  Based on my limited experience with two arms, I am of the opinion that this mod benefits all VPI unipivots.

halcro

I dislike parallel trackers. Not as a matter of preference (although the Air Tangent had serious problems) but more for their aesthetic demands ...

@halcro that's what I mean by preference. Judging by aesthetics is very much a subjective preference. I don't find that objectionable at all.

I've never been a big fan of parallel trackers, either, although some have been better than others. In most cases, I think the cure is worse than the disease.

Dear @stringreen : """  I can't help wonder why there is so much discussion on this. Raul thinks the single pivot is flawed because it is unstable (wiggle)...the 2nd pivot stabilizes the arm and thus corrects the issue. It me it sounds better with the 2nd pivot than without.   """

you are rigth and agree. I don't know why @cleeds and @billstevenson  makes reference that I'm " against " your 2nd. pivot experiences when I'm not. Even at the very first posts in your thread I posted:

"""  So, if your  VPI is no more an unipivot then what you have is a serious improvement in your listening experiences. Good. ""
stringreen OPThanks raul.....the 2nd pivot is certainly an improvement """



After that I posted to @billstevenson that his own experiences with the 2nd pivot in the VPI confirm my take in the true unipivots ( not dual pivot designs. ). Here the Bill posts:

""" my Prime single pivot tonearm was recently modified and significantly improved sonically by the addition of a second pivot """


""" It is doubtful that anyone who does this will decide after experimentation that the 2nd pivot does not provide a positive benefit. """

The OP statements in his thread confirm my point. """

Then I posted:

"""  2nd pivot according my statements provides better stability. The only change in the VPI 2nd pivot is just the 2nd pivot that is what makes the difference. """



So what's all about? other than the direct @cleeds insults to me. 


@halcro , as you know the Continuum tonearms are dual pivots so both don't take advantage of that  theory you speaks: ""   is the virtual elimination of 'friction' at the pivot point......"""

It's only a theory and does not happens that way. A subject for other thread.


@billstevenson , VPI is one of the last tonearm designers that changes from unipivot to dual pivot and now to gimball ones and before VPI other did it as Graham with the Phantom2, Basis, Moerch, Continuum, etc.

I wonder why if the true unipivot is so " grandious " design they changes or prefered the dual pivots or gimball ones?, these facts means something very serious about.
Not enough proof for you? then is up to you that are a scientist that can't prove directly what you posted. No, I'm not and I never said I'm a scientist. So what?.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.