@phantom_av
The assumption that switching out the stock motor ( with presumably a more expensive motor ) would amount to an 'upgrade' may need some comment. I begun this thread 1 1/2 year ago with the same assumption. I had speed stability issues. However, with experiments on threads, advises by more experienced La Platine users on how to work with thread tensions, and the Callas audio upgrade,
https://www.callas-audio.nl/Platine%20tips%20&%20tweaks.pdf ( including the battery conversion ), I am very comfortable with how the stock motor is operating. There are definitely tweaks to look into for improvements.
In speaking to a fellow La Platine owner recently who has converted to a Dereneville motor ( in the $4k - $5k range ), his advise to me was to stick with the existing motor. In a separate thread on the What's Best Forum, the same person stated that the Dereneville motor lowered the background and that he was happy to have made the 'upgrade'. However, noting his private conservation to me, he is really saying that it may not necessarily be money well spent. ( He did mentioned that a well considered isolation platform was a definite upgrade for the La Platine. )
Be that as it may, here is a list of motor options that I have researched as possible 'upgrade' :
1. Dereneville Audio has at least three possible model that would work.
2. Sperling Audio has two motors.
3. Galibier Design is marketing its motor with modification as a fit for the Verdier. Thom has commented on this thread with the advise to defeat the suspension of the Verdier for best results with his motor and tape drive.
4. SOTA Turntable has a motor paired with a servo system, i.e. Roadrunner, under its Eclipse series that would be another option that I seriously considered. You would have to construct a housing for the motor.
5. Jasmine audio has a motor which I own. Admittedly, this is perhaps not in the same league as the above motor systems. I have paired the motor with an Origin Live belt made for Micro Seiki. It is a different sonic presentation than the thread drive, a little closed in. My conclusion with the Jasmine is that a different motor would definitely change the complexion of the Verdier. But at what cost would the change be an upgrade?