These sorts of products have a very important function--they make purchases below their price seem more sane. If you point to a $55,000 tonearm, your own purchase of a $5,500 seems more reasonable, after all, it is only one tenth the price of the SAT arm.
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Dear @mijostyn : About your concern of neutral balance, it's ok in theory but there are other really critical tonearm design issues to really try helps to the cartridge job and yes as you and @dover as tighter the cartridge/headshell mount as the better.
I think that the main target for a tonearm designer is not only that the cartridge be hold and makes the cartridge tracking ridding in the best way but its intrinsecal relationship between these to analog items and I'm refering how to put at minimum all the vibrations developed by the cartridge/LP ridding that holds by the tonearm where those vibrations pass through as the feedback and own tonearm self develped vibrations.
That's for me is the must critical issue that affects in way different directions and in reality are what puts each one tonearm colorations in what we are listening.
Yes, bearing type and design is crucial too but we have to remember that arm/cartridge/LP/TT/plattform function not only as a transducer but live in a way imperfect audio analog world where even the " air " that surrounded can have effects in the final performance.
Put at minimum the developed vibrations for me is the name of the game.
Here, again, the SAT designer/manufacturer white papers on rigidity, vibrations and resonance:
The saphire Kuzma arm wand confirm what is my take about. In the other side as you I'm not a fan of the tonearm unipivot designs a for the same good reasons ( several ) that you already know and in the link that Mike posted is precisely an unipivot design and we can read manufacturer statements with out any kind of measures/facts that confirm those statements. No, I don't listen it never but:
• Torsional motion feedback control in real time
In real time could means or not that that kind of control happens when is happening ? an unipivot is unstable but here the manufacturer says " high tortional stability ". What really means that under play?
ultra low ressonance arm wand. Well the best tonearms said the same.
Anyway, this unipivot looks as something to experience but any one of you can be sure that what you will sound with are only a different kind of colorations. How much different? I don't know but those differences have a intrinsecal relationship with which cartridge is mounted, the room/system resolution and certainly with the MUSIC/sound targets/priorities of the tonearm owners.
Regards and enjoy the MUSIC NOT DISTORTIONS, R. |
Dear friends : Please take a moment and think a little about those developed cartridge/tonearm/LP/TT circuit.
All generated non-grooves signal movements/vibrations can't be avoided at 100%, we could put at minimum in many ways as can be changing its frequency response where does less harm or through a well damped tonearm design or, or, or,.
Why cartridge designers cantilever choice material in its top designs is Boron or Diamond? well both materials have the higher Young Modulus than any other materials, those kind of material that's critical for that cantilever cartridge role to at least try to put at minimum additional movements/vibrations by the cantilever it self.
Kuzma ruby choice material for its arm wand design was trying to take in count how ruby behave with vibrations and feedback.
To my knowlege the best well damped tonearm design was designed using Boron trhough all its parts and especially at the arm wand and is a unique and the only tonearm manufactured with that material that is not easy to works with.
The SAT is rigid and well damped tonearm and I don't know if that new unipivot design arm in reality is well damped and rigid that's more important that that field coil bearing control. Even the designer talks of " low resonance arm wand " but no single word about vibrations or damping by the material blend of the tonearm. We will see when @mikelavigne could share his first hand experiences in his room/system.
R.
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I forgot, that boron tonearm is the Technics EPA 100MK2. @mijostyn and guess what? it's not a neutral design and it's a just neutral tonearm quality performance as till today no other tonearm design.
R. |
The Kuzma Safir is not a unipivot.
No - the Safir uses a sapphire arm tube. |
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