Interesting turntable

[Al M.]

...or not:

https://www.touchofmodern.com/sales/mag-lev-audio-f3121a62-bcd0-46e9-a32b-df70180d0f84

 

[tima]

Heh.

For some reason the word 'spring' comes to mind.

 

[kach22i]

Dang that's cool, gotta wonder how they avoided magnetic interference with the cartridge coils.

 

[ack]

I have a similar ornamental device in my office, spinning a tiny bottle of scotch; and there are a few high end turntables, from VPI and Clearaudio - the latter is reviewed in the current TAS issue

 

[NorthStar]

Makes for a nice Christmas decoration ...

 

[timztunz]

Isn’t this company already defunct?

 

[IanG-UK]

A development by Wilson Benesch:

http://wilson-benesch.com/2019/05/press-release-gmt-one-system-turntable/

 

[Kal Rubinson]

...or not:
https://www.touchofmodern.com/sales/mag-lev-audio-f3121a62-bcd0-46e9-a32b-df70180d0f84

Any system that suspends/isolates the platter differently from the tone arm is inherently flawed.

 

[NorthStar]

...or not:

https://www.touchofmodern.com/sales/mag-lev-audio-f3121a62-bcd0-46e9-a32b-df70180d0f84

The video from the link is very catchy...musically and visually.

This one is more "raw" ...

Any system that suspends/isolates the platter differently from the tone arm is inherently flawed.

Check these guys with spare time ...

 

[howiebrou]

I prefer this one.

 

[NorthStar]

How do you adjust horizontal tracking?

 

[howiebrou]

How do you adjust horizontal tracking?

I was just thinking the same thing...the video does show a stylus force gauge though...

 

[NorthStar]

I think we us here we'll stick with more conventional turntables for a more down-to-earth music listening session. We are well passed Mickey mouse designs.

 

[kach22i]

Any system that suspends/isolates the platter differently from the tone arm is inherently flawed.

Did you open this huge can of worms on purpose?

Do not most turntables except the really low cost ones have multiple points of isolation?

The plinth to feet to surface below is not even a given if tonearm is standing alone on it's own little tower.

Platter has own isolation from tonearm base typically. Is this NOT a good thing?

I do not have time for an argument, just asking for an example of what you meant as an ideal situation.

 

[Kal Rubinson]

Did you open this huge can of worms on purpose?

Yes. If the tonearm/base and the platter are not suspended identically, i.e. coupled, there will be independent movement that will compromise the stable positioning and orientation of the stylus in the groove. A simple example of one proper way to assure this is not an issue is the Thorens floating sub-chassis which supports both the platter bearing and the tonearm board.

 

[howiebrou]

Yes. If the tonearm/base and the platter are not suspended identically, i.e. coupled, there will be independent movement that will compromise the stable positioning and orientation of the stylus in the groove. A simple example of one proper way to assure this is not an issue is the Thorens floating sub-chassis which supports both the platter bearing and the tonearm board.

Avid Acutus would be another example where the two move in unison...?

 

[Solypsa]

STST Motus II also uses a suspension-sub chassis for platter and arm, carefully designed to avoid excess movement.
The plinth (in this case) is strictly cosmetic...

 

[PeterA]

Yes. If the tonearm/base and the platter are not suspended identically, i.e. coupled, there will be independent movement that will compromise the stable positioning and orientation of the stylus in the groove. A simple example of one proper way to assure this is not an issue is the Thorens floating sub-chassis which supports both the platter bearing and the tonearm board.

Typically, the SME 20 and 30 turntables are another example. They suspend the arm and platter together so that their relationship is fixed. However, the motor is on a separate chassis which means the motor and platter could (in theory) move independently. SME must not think that is an issue.

In my case with the SME 30/12 shown below, I have added a separate outboard arm pod to the mix so that I can use an SME 3012R tonearm. In this situation, I realize full well that the platter could (in theory) move independently from the outboard arm and in that sense, it is "flawed". In practice, I have heard no issues with this configuration. The SME suspension is very well damped and not at all springy.

 

[mulveling]

Most audiophile turntables, even suspended ones, have rigid coupling between the spindle/bearing and armboard. You can see extra effort to make this connection as rigid as possible in Rega's upper tables, the new SOTA Nova VI, etc. An example of where this is NOT the case is the Clearaudio Ovation & Innovation lines, where the platter alone is magnetically suspended with some vertical compliance, though horizontally it's held rigidly in place - unlike the MagLev, which is just a wobble-inducing disaster (and no, the MagLev did not work with MC cartridges).

Actually now that I think of it, SOTA has been boasting of their new magnetic bearing - so maybe that has a similar issue as the Clearaudios now? Or it could be a hybrid where there is still some vertical contact of ball to a thrust plate, but at a highly reduced force.

 

[kach22i]

Interesting discussion, I've looked up the tables mentioned so far - good stuff.

https://theaudiophileman.com/acutus-sp-avid-turntable-review/


https://wizard-highend.blogspot.com/2012/11/stst-motus-ii-dq-turntable.html