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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halcro

Halcro,  Even if the movements on the stylus end are similar, I think we  need to look at the stylus/cantilever as a system, a vibrator.  That might sound funny, but that's exactly what it is. That little guy has to vibrate 20,000 times per second to achieve 20KHz. To think that some carts have response to three times that or more is hard to conceive, but it's true.

Regards,
 

Raul, Given your criteria for a great cart (sounding live), you might like the Acoustical Systems offerings?  I try to keep an open mind, but like you, won't endorse something I haven't heard or jump on some bandwagon. Have you heard any of the other AS models?

I have to withdraw my analysis of uni-din alignment, at least for now. I have reason to believe it might be based on false information - the 63.3 and 112.5mm nulls.  More on this later.

Regards,


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.