Ledoux1238, I am very familiar with MFA Lumi. My best audio buddy has 2 of them. They are very reliable and I am surprised you have ongoing problem. My friend suggested you to check rectifier in the power supply portion. Also you should contact designer Scott Franklin at Wavestream in California. I am saying all of this because Lumi is still the world class preamp! It will be very difficult to match its sound.
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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I too have owned two Luminescence’s. Never had a problem.However it is a complex circuit, and it would be impossible to guess from a distance wgat might be going wrong with yours. If Scott Franklin is still alive and well, he is the obvious choice for you to get a permanent fix. That should not be happening. I regret that I sold my last luminescence several years ago. |
I have been using mine since the mid-'90s with various arms and cartridges, I also own a PTP but I always go back to the La Platine. Don't sell yours. https://live.staticflickr.com/65535/49919251671_1969f935f9_h.jpg https://live.staticflickr.com/65535/49919292731_51a8041b9b_k.jpg |
Ledoux, You have a fine turntable. A small, low torque motor was used because you do not want it interfering with the steady rotation of the heavy platter. It adds just enough torque to keep the platter spinning. If you remove the string and spin the platter you will able to cook dinner waiting for it to come to a stop. Yes, you want as little tension on the string as possible, too much and the platter starts influencing the motor! The platter slows the motor down, it fights to catch up to speed and overshoots and as you have noticed you get wandering speed. Using the SOTA drive system will improve speed accuracy for sure but I am not sure you will hear a difference. Keep your feet as they are. Your plinth is just fine. The SME V is a fine arm but you will need to add some mass for most MC cartridges. People will complain about the arm having poor bass because they fail to do this but set up correctly you would be hard pressed to fine a better arm. The only arms I would desire above it are the Kuzma 4 point and the Reed 5T. The 5T in particular is very intriguing. It is a brilliant design. My hat is off to those guys. I will never own a DD turntable. Putting an oscillating magnetic device under a phonograph cartridge is the silliest thing I've ever heard of. The improvement in speed accuracy over any decent belt drive table is undetectable by the human ear. I mean wow and flutter in this regard. There are people who can hear the slightest pitch differences. Fortunately I am not one of them. |
Regarding my pre-amp, MFA Lumi, situation, I hope it will not cause a distraction from the topic at hand. However, it is integral to the analog chain, and I could seriously use your help / opinion, so please bear with me. I have Lumi A1 or A2, with two transformers in the PSU as opposed to four in the B-2c series. In my correspondence with Scott Frankland, he regarded the B series as the 'most advanced'. @vuckovic '...Lumi is still the world class preamp!...' The high regard given to the Lumi, I believe, is primarily for its phono performance. With the La Platine / Trans- Fi / ZYX entry level cartridge combo, the soundstage bleeds right out of the sides of the ET LFT-8b's. The depth, layering, and 3 dimensionality ..etc are quite something, hence my push on the TT front to get more. Instinctively, I know the Lumi will not only keep step, but is driving the herd. While I only listen to cds' 20% of the time, the listening experience is very different. Not unpleasant, but everything is scaled down, the 'stage is restricted, resolution is down, and I am straining to hear the ambience of the venue...etc. The thinking was that the culprit lies with the vintage Wadia 16 until about a month ago. As the Lumi was sent for repairs, I decided to plug the Wadia directly into the Von Gaylords Nirvana mono's. With its own digital volume control, I was listening to a more resolved, more transparent, and slightly larger soundstage presentation. It seems clear that the Lumi line stage was the issue. I wonder if your audio buddies or @lewm can confirm the disparity between the line and phono stages in the Lumi? If not, then I really need to get it fixed by Scott!! @lewm What have you moved on to after the Lumi and why the regret? For now, I am leaning towards using The Lumi strictly as a phono preamp through the Lightspeed Passive Attenuator. In other word, keep the goodness of Lumi and optimize elsewhere. This passive device is proving to be quite something and a subject for another post. @lewm I think you are skeptical of this one. |
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