Direct Drive vs. Idler Drive vs. Belt drive

I have to put a word on belt driven tables. The biggest mistake in my eyes is that most TT-builders only use a one sided configuration regarding the motor issue. You need to have at least two motors on both sides to counterbalance the drift of the belt. On smaller tables you might not hear a difference but in the field of excellent High End tables it does! From my three belt driven tables two incorporate a both sided motor design. Just imagine you go for the most expensive TT, the Techdas Zero for 400 K and it does come only with one motor? No one mentioned the vector issue etc. I have now implemented the most expensive tonearm on one of my designs. You may have a look under AudioCirc.

best
E.

thuchan, that is a hypothesis that nobody has ever proven, it just seems nice intellectually. The greatest turntable of all time was belt drive with one motor. Everyone who owns a turntable needs to see this brilliant video.  https://www.youtube.com/watch?v=1rgK0YMsJXM
I guarantee this  video will change your view of turntables forever.

looscannon,It is a proofed hypothesis AND simple mathematics.
just imagine you have a vector from only one side and then you need to compare it with two vectors from two sides, ideally - if you check properly. The distinctions of the two vectors should make a difference. Do ´nt you think so?

best
E.

The greatest turntable of all time was belt drive with one motor. Everyone who owns a turntable needs to see this brilliant video. https://www.youtube.com/watch?v=1rgK0YMsJXM

"The greatest turntable of all time" ? Is it a joke or what ? 

Dear @thuchan  : In the world of audio nothing is perfect always exist trade-offs.

In belt drive TTs as in other TT kind of designs always exist trade-offs where the designer has to make his choices.

A single motor per sé has its intrisecal " problems " that can't be avoided and that like it or not affects the whole TT quality performance levels.
A second or third aditional motors only puts more " problems " for the quality level performance of that TT that any true advantage.

One of my belt drive TT's came with one motor it's the stock way on sale but you can add other two motors so I bougth a second motor and made my in deep evaluation overall process about.
At the begining my thoughts were that the second motor was an improvement ( maybe because I bougth it and spend additional money and I was waiting to appeared that " improvement ". ) after the evaluations over 3-4 weeks I took in count that was not a true improvement but only a diferent performance that in some ways degraded a little what I was listenong through it.

Yes, those vectors exist in theory but you can't really listen an improvement if you listening to it with no self biasing about. Our brain/attitude on any specific subject has a lot of influence and makes that we go a head with some " mistakes " or alternatives that really does not helps to improve quality performance only a different performance.

R.