Turntable speed accuracy

Correct speed with 500 arms? That is not a helpful statement since we don't know what the definition of "correct speed" is. What matters is to reduce the effect of a single stylus to below audibility. I don't think that anyone has been able to quantify what that specification is. But there is ample evidence that extremely small speed perturbations are audible.

It is is misnomer to assume that a massive platter fixes the stylus drag issue. A heavy platter results in a smaller perturbation spread over a longer period of time. A light platter will slow more but will recover more quickly. A heavy platter changes the problem but does nothing to eliminate it. I think that most people prefer the shallow but longer perturbation from a heavy platter, but ultimately it's a matter of taste, not superior stability.

Dear Lewm,
ok didn't jump so far. Maybe I have a different / not typical understanding of footprint or better let's say character or personality of a turntable.
I know some audio gurus carry the philosophy of neutrality around the world, which should mean, the more neutral a turntable is the better for the reproduction. In their sense it is absolutely necessary that a turntable should not become musical - but neutral. A neutral turnable cannot be musical, warm or dynamical, or lively. It is and has to be just neutral. Everything else is coloration or distortion. Am I right? Okay. In this understanding I am happy to live with coloration & distortion - and I don't need to jump.

best @ fun only

"Mosin, as inertia is directly related to mass and friction.....are you saying that heavy platters have inherently greater inertia than light ones?"

What I'm saying is that sheer mass is less effective when it is capriciously used than when it is purposefully assigned to achieve an optimum moment of inertia. As far as mass on a platter, I feel that its benefit as an isolation component is another key reason to use it.

Of course, there are more ways than one to skin the proverbial cat, so lighter platters may also work with some designs. I work solely in the arena of idler drives, so that is where I spend my time looking at such things. Recipes vary, but the performance depends on the entity as a whole, and not just a single part because every part is critical to the outcome. Any shortcut is a compromise. At least, that's what I have come to believe.

I am with you in this dilemma, which is why I hate the word "neutral" when used to describe an audio product. It can have any meaning that the user wishes it to have. One meaningful way to use it would be to say that "I have heard this or that LP many times in my own system using a wide variety of turntables, tonearms, and cartridges, and I find that this turntable/tonearm/cartridge seems to add less (or more) to the basic sound on this LP than does that turntable/tonearm/cartridge". Or something like that.

Excellent video production Henry ! Your accent doesn't come through in the posts here. :^)

My American and UK co-workers tell me Canadians have strong accents too but I don't believe them - eh ?

I think this Utube stuff opens opportunities here for everyone and the gear.

Would love to see more of you out there with your wonderful gear.

Thuchan - how about a video demonstrating your favourite audio toy – you could speak Japanese too.

Wonder what Raul sounds like?

How about a 3 minute utube video Raul demonstrating your tonearm features to us ?

Technology awaits. All in fun

Frogman - I agree with you.
Tony – great info

Cheers Chris