Why three motors?



Can someone enlighten me on the wisdom of having a three motor turntable like the TW Acustic with only ONE side of the belt touching the platter?

Here is an example.

I just don't get it...
hiho

Showing 1 response by audioquest4life

I have a Transrotor Apollon with three motors but the arrangement is different. The belts actually fit on a grooved slot on each motor that corresponds with a grooved slot on the magnetic bearing assembly on the bottom of the platter. My platter is really heavy, 80mm thick polished aluminum and three motors helps in regards to maintaining speed accuracy, timing and just the sheer grunt to move such a heavy platter.

Onhwy61 said it best: "Whatever variations, irregularities, etc. in one motor are averaged or even canceled out by the other motors."

It should lead to better speed stability, both long and short term. Never had any noise or vibration issues from the three motors. All I know is that with one belt, the platter spins up to speed a little longer with a nudge, but with all three belts, the platter is under absolute control of the belt grips and they belts take control and you KNOW there is more torque grabbing the platter.

I think it would be the difference between a kid spinning a "merry go round" versus Hulk Hogan, Mr. T and The Hulk, yeah that is it.

Anyway, voiding any disparaging comments from the technical aspects concerning pros and cons of having three motors; the three motors I have work great for me and the sound is incredible.

Thats my story and I am sticking to it.
Ciao,
Audioquest4life