The Palladian-A step beyond


The new cartridge from Acoustical Systems may finally be the LOMC to fully realise the theoretical advantages of the genus.
And convince those long-suffering audiophiles to whom the 'modern' MC presentation has been anathema to 'live sound'....that the realism of vintage LOMCs like the SPUs and FR-7 series has finally been recaptured 👀
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128x128halcro
Dear @fleib : Here are the calculations to achieve those null points that every one can have and use in any tonearm:

http://www.vinylengine.com/tonearm_alignment_calculator_pro.php?arm1=Arm+1&l1=el&a1lv=270&am...

you can read the null points values in the number charts under Löfgren B status.

@halcro there is the " invent " of your " friend " !!!!!!!!. As usual with: a fraud.

Now, that you know how to do it you can play " inventing new " kind of alignments.


Regards and enjoy the music,
R.

Not so fast Raul.

Okay, here's the deal; I saw a PDF written by Dietrich Brakemeyer in 2015. It kind of explains the design criteria of uni din. It gives a brief history of alignments (I won't bore you with the details) and talks about his alternate alignment as an option.

As a preface to the PDF he says the published nulls (Analog Planet) are wrong. I want to make this clear. I have not been in touch with Acoustical Systems or Brakemeier directly, or Fremer, and I have no vested interest in any of this.

I saw this late at night and at first I thought  perhaps the nulls change with eff length. After a second reading I'm not sure, but probably not. Check this out- to paraphrase:

**
 Uni-Din does not follow the standard calculations for tangential curves as we know them. It also features very unusual resulting offset angle and overhang for the effective length. Uni-Din was first designed, then calculated.

You may be tempted to recalculate Uni-Din based on the known second null point with the calculation tools offered in VE or similar websites.

However, this inevitably leads to the first null point being more than 20mm away from reality, and thus leads to a curve that is anything but Uni Din.**

I'll be honest. I don't know what the hell he's talking about because there's not enough info. I don't have an AS alignment device to debunk this. AFAIK this is like a Dennesen or Feikert protractor which gives you the inner null?  One of these protractors automatically gives the outer null. If one null can not be calculated from the other, it can be measured.

This requires a novel device called a ruler, or you could go to VE and download a Chpratz protractor which is just a calibrated straight line.

Uni-Din owners - measure your nulls.





I am sitting back basking in the sound of my Palladian, aligned to UNI-DIN, which gives me an unprecedented amount of information for my senses to process. The additional information is in so many regards: ambience, all parts of the frequency spectrum, changes in voice pressure etc. And this, coupled with excellent macro and micro dynamics, and a balanced frequency response, all add to make my listening experience the more believable and enjoyable.

Somehow it managed to do all of this regardless of the debates that are raging around its design fundamentals and alignment and the personal dislikes of some for its designer. To give full scientific context to my listening experience, I should note that my personal cantilever (not to be confused with the Palladian's cantilever) started off highly flexible (and therefore I would think reasonably damped?). However, with heightened enjoyment (listening that is) its tensile characteristics firmed considerably. I would presume that it therefore became less damped? At all times it remained hollow throughout.

Riddle me this. Approach A is superior as per the laws of physics to Approach B. However, regardless of which approach is used, it will have to interact with other areas. Also, the quality of the execution of the approach will also determine the result. So even if I know that Approach A is scientifically superior, it does not mean that a componet following A will sonically outperform one following B. I therefore use my ultimate approach, my EARS to determine the final result for me. If you have the opportunity to hear a Palladian, I would suggest that you do. It is an excellent cartridge.

I now have the courage to write this having purchased and applied copious quantities of LOTFR (Lord Of The Flies Repellent).

All the best!
And "enjoy the music" even if you do not listen to my type of music on my type of equipment! I think this is meant to be a hobby.
Maybe because I have to be concerned with exact calculations and minutiae of other kinds in my work life, I tend to be lazy about facing exactitude in my hobbies.  Seems to me that no matter what anyone can do, no matter how great a genius or how creative or innovative, it is only possible to achieve tangency to the groove wall of an LP at two points on the playing surface, given a conventional pivoted tonearm that is mounted such that the stylus tip overhangs the spindle and employs a headshell with offset angle.  Optimal mounting geometry would seek to place those two null points such that tracking angle error up to and after each of the two null points is minimal.  From what I can gather, Lofgren and Baerwald published the best solutions to this problem, and maybe now Dietrich has done even better, but I have to wonder how large a difference alignment alone could possibly make in the listening experience, when we are comparing solutions that are very close to each other.  I am dubious, and I do own and use a UNItractor.

If the AS cartridge sounds wonderful, it is probably because it is a very good cartridge, maybe a great one, but I doubt its excellence has much to do with alignment per se.

Now as to the discussion of cantilever movement.  It's interesting to me that MC cartridges, which are generally low in compliance, lose again. Add this to the other drawbacks: (1) The moving mass of an MC is not as low as that of an MI cartridge. (2) The low signal voltage necessitates one of a few tricks to add gain, any of which inevitably also add distortion of one kind or another.  Why do they dominate the high end?
They do have the undeniable virtue of costing more.
A pensive post Lewm..🤔
And one which I think the 'High-End Cabal' (which includes reviewers) would like dismissed 🙈
I have just today, conducted a mini-shoot-out between the Sony XL-55, Sony XL-88 (both renowned LOMCs from the Golden Age of analogue-70s-80s) and one of my favourite MM cartridges (also from the same age)..the Victor Z1 fitted with the SAS stylus.
In two words.....no contest 😎
The Victor has all the immediacy and involvement of 'live' music combined with the delicacy, depth, spatial imagery and speed that are commonly used to describe LOMCs....
Yet I have perhaps a dozen other vintage MMs which are virtually as good as the Z1/SAS and each one can be had for a maximum price of $400...😝
The real question is.....how does the Victor compare to the Palladian....❓👀