The MinusK does use springs, but probably not in the conventional manner.
According to their website: "Vertical-motion isolation is provided by a stiff spring that supports a weight load, combined with a negative-stiffness mechanism (NSM)."
2020 update : JC Verdier La Platine
A recent encounter with a JC Verdier dealer as well as a recent Audiogon discussion thread led to the start of this thread. He was in my house updating my La Platine which had been in storage for ten years with thread and oil. While he has high regards for the deck, his newer clients nevertheless prefer a Techdas iii than an 'old' La Platine. Given the proliferation of expensive decks in the past dozen years, La Platine has become very much under-appreciated.
It's clear to me that the influence of the La Platine is everywhere to be found. Specifically, the magnetic suspension system that was employed 30+ years ago. Even SOTA offers their newer decks with mag. lev. features. And if you read this review: https://www.callas-audio.nl/Callas%20Platine%20Mod%20Kit%20Review.pdf, the Continuum Caliburn uses the same concept, which was not acknowledged in Fremer's review, albeit with more sophisticated , and expensive, execution.
It is also clear to me that there is much misunderstanding of the workings of the La Platine. I for one have contributed to this. The motor of the La Platine, for example, has been much maligned. The thread drive is another aspect of the turntable that have been described as inferior. With regard to the motor and thread drive, I have been set straight by Chris @ct0517 and Lyubomir @lbelchev. Experimenting with the different types of silk threads, the tightness to the platter and a renewed understanding of the soundness of the Philips motor have been rewarded with better dynamics and transparency.
The funny thing is that during the past two years of re-engagement with audio, I have questioned ownership of every components in my arsenal except the La Platine. It has always been a keeper. I wonder if La Platine owners would contribute to celebrating this 'old' deck with tales, advice, and insights?
Cheers!
It's clear to me that the influence of the La Platine is everywhere to be found. Specifically, the magnetic suspension system that was employed 30+ years ago. Even SOTA offers their newer decks with mag. lev. features. And if you read this review: https://www.callas-audio.nl/Callas%20Platine%20Mod%20Kit%20Review.pdf, the Continuum Caliburn uses the same concept, which was not acknowledged in Fremer's review, albeit with more sophisticated , and expensive, execution.
It is also clear to me that there is much misunderstanding of the workings of the La Platine. I for one have contributed to this. The motor of the La Platine, for example, has been much maligned. The thread drive is another aspect of the turntable that have been described as inferior. With regard to the motor and thread drive, I have been set straight by Chris @ct0517 and Lyubomir @lbelchev. Experimenting with the different types of silk threads, the tightness to the platter and a renewed understanding of the soundness of the Philips motor have been rewarded with better dynamics and transparency.
The funny thing is that during the past two years of re-engagement with audio, I have questioned ownership of every components in my arsenal except the La Platine. It has always been a keeper. I wonder if La Platine owners would contribute to celebrating this 'old' deck with tales, advice, and insights?
Cheers!
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- 209 posts total
Thanks for the correction. I wonder what is an NSM. If you push on a Minus K, it does not behave as if primarily spring loaded, which is to say that a spring will exert a force directly proportional to its degree of compression or extension from rest, among other factors of course. So, if you push on a spring loaded shelf, the shelf will get more and more difficult to compress, and the reverse happens when you release the shelf allowing it to restore its steady state position. The Minus K seems to exert a constant force restoring it to its steady state location, up or down. For this reason, I intuitively think or thought of it as using something other than springs, at least primarily. |
The idea to separate motor from plinth comes from two sources: a local dealer and a fellow Verdier adopter in HK on advice from AnalogMgik’s Richard Mak. Mak is a champion of the deck ( I think he has two). He places the plinth and motor ( after market) on separate platforms with rather longish tape drive. That is how I thought I would proceed with a dedicated platform for the plinth, until both your gentleman’s, Lew and Michael, comments above. Further research will be required on my part. But one thing is clear now to me. MinusK may not be the right choice as a platform, especially for holding both plinth and motor. Size alone seems to preclude it. And I constantly tweak tonearm, thread length...etc, and each would entail a further platform adjustment!
@thekong 1. How do you defeat the suspension? 2. What arm(s) / cartridge are you using? 3. Are you using aftermarket thread or other drives? |
As Lewm has already mentioned, it is quite interesting that Verdier users, as a group, seem to be the only one who embraced the idea of using long belt / string and putting plinth and motor on separate platforms! Yes, I have seen some Micro Seiki users doing the same, but they are certainly in the minority. Even the insolation base developed by Micro Seiki for their 8000 MK2 placed the plinth and motor next to each other.
As mentioned, I have just started on fine tuning the La Platine. I started out using the Kuzma 4Point 14" with Dynavector XV1S, but I have just taken it out and going to put in a Schroeder CB with a VDH Colibri XCM for testing. Once I get a better handle on the La Platine, my plan is to make a large armboard, which can be placed across both arm columns, and install a Kuzma Airline. Will see how that goes!
To defeat the suspension, I simply placed some metal footers with height adjustment ability on the four corners, nothing fancy. Currently, I am just using some nylon threads, but will certainly test other options.
Best regards, |
- 209 posts total