Mag-Lev Turntables

It would be cool to hear those side by side. I have a feeling the Rega wins but that would be a fair bang for buck comparison. Thanks for looking it up. 

Also saw the Mag-Lev at an audio show,  three years ago for me. The turntable was running, but visitors could only listen via a headphone. Not familiar with the LP it was playing. Seeing it running was impressive, though.

Expecting that the demo used a good LP, arm, cartridge, headphone and amp, and was set-up properly, I was very sad it didn't sound right. The music sounded muffled, and also lacking in the high frequencies. That LP was the only one available for listening. I listened only for a very short time.

Looking at the platter floating and rotating by magnetic energy, I could see that the platter was going very slightly side-to-side. I wonder what other rigid body vibration modes are present in this floating platter and how these are controlled. I especially wondered about the modes from the radially-inward-moving, eccentric, downward force applied by the arm on basically a magnetically suspended flywheel.

Here is the engineering principle that must be observed when designing a plinth for a turntable:

The plinth must be as rigid and as acoustically dead (damped) as possible. The mounting of the platter bearing in the plinth will be thus coupled as rigidly as possible to the mounting of the tonearm. If it is not, any vibration at all can be interpreted by the pickup (arm and cartridge) as a coloration.

IOW, if the arm and surface of the platter are able to vibrate at all, if they are always in the same plane of vibration, the pickup will not be able to pickup noise or coloration on that account. So a magnetic suspension simply isn't going to work; coloration is guaranteed.

I own one. 
Loved the ahhh factor. 

couple things, the wobble is bad, if a record is warped or uneven pressing.

If it were on a flat normal tt, uneven records wouldn't matter, but with the Mag-Lev, the needle lifts if the wobble is too great.

There are some albums (ELO) I can't get to the 4th or 5th song on an album

Then it is advertised as semi-automatic. The arm is suppose to lift and return. My stylus is mush thanks t all the paper it has cut through

Lastly, it caught fire. I walked in and smelled smoke. I assumed it was a McIntosh but nope, it was the ML and it melted the plastic. Now no one answers their phone.

Read this.

https://audiokarma.org/forums/index.php?threads/is-the-levitating-turntable-company-in-financial-tro...