Turntable speed accuracy

Albert - I love more new tt's coming to the market. It just seems the hyperbole doesn't match the performance. In this case the claims made for energy dissipation in the design seemed at odds with using wooden arms and armboards. I'm not sure stainless is that great either, but as you will have experienced most arms have resonances and different armboard materials will sound different and either add to or subtract complementary resonances.
Most often ignored in these forums is that the turntable/arm/cartridge form one system and ideally the 3 components must have a common purpose in structural design - either dissipate energy or sink it to ground. Turntable, Cartridge or tonearm comparisons should always be referenced or qualified by the other 2 components but seldom are.
Back to the NVS, the optimum arm board material will vary depending on the material used in the arm/arm mount and the material used in the NVS frame to ensure minimal energy is reflected back to the cartridge/record interface at each junction.

Perhaps the silence is telling us something

It may well be?
Whilst we have heard anecdotal evidence that some belt-drive turntables......for instance the big Micro Seikis....can maintain consistent accurate speed according to the Timeline.......I have never seen any visual evidence (via YouTube?) of this?
If anyone can post a clip of ANY belt-drive TT able to do this with cartridge playing and not playing......it would put to bed any doubts?

Lespier,
I run the Final Audio Parthenon ( heavy patter/thread drive/AC motor with reconstructed sine/cosine wave power supply ). Just waiting for the 1st shipment of Timelines to arrive in New Zealand. I'm not losing any sleep, my references for speed accuracy -KAB,Test Record, solo piano stability of notes, and using Digital Sources as a comparison are fairly comprehensive. Oh and forgot I have Technics SP10 Mk3 for comparison as well ( Still not losing sleep ).

Halcro - welcome back. Australian politics has been very entertaining of late. Are you putting your hat in for Foreign Minister ?

Dover,

Good post, I agree there are many, many variables in this game of making a turntable, arm and cartridge right. The other variable is personal taste. I certainly have my prejudices.

Lespier

I'm more interested in how some touted belt drives(SME, Basis, Verdier, Micro Seiki etc) have fared when tested with the Timeline.

Perhaps the silence is telling us something.

We had some very interesting things show up with our Timeline tests.

I've read all the arguments about the Timeline only showing "that" one single revolution, and not what happens to the speed in between.

I get it, but if the laser is moving steadily along the wall in one direction and consistently it seems obvious that speed variation is a fact.

An even more bizarre thing happened some weeks ago during a test with the laser splashing on a wall about 18 feet away.

Anyone interested in duplicating what we did would be welcome. Just play an LP with fairly benign (soft) passage and note the laser position on the wall.

As the needle begins to enter the more difficult and complex musical passages note not only the position of the laser but it's actual "length" as it paints the light.

It finally occurred to us after some time what (I think) was happening. Would love to read reports from others including your conclusion if you do this experiment.