The Mike New Technics Bearing

[walpurgis]

As lawyers would say "de minimus". The point at issue (posts 744-746) was the relative vibrations of the bearing itself compared to vibrations reaching the bearing from the stylus. If there was lube damping it would surely apply to both vibrations.

So, you are talking about vibrations generated by the bearing, rather than those fed to the bearing. There are two sets of bearing contact faces. Those attached to the platter spindle and those attached to the TT base (unless you are dealing with an inverted bearing) and these are separated by lubricant as I earlier indicated, any noise generated here would be rumble. The effects of lubricant would still be a factor.

[Marco]

I'd like to see some measurements published regarding the bearings and base plates. I assume the manufacturers take some readings?

I'm rather incredulous that either can make such a significant difference over and above the stock arrangement...but then admittedly I haven't heard them

<Yawn> I think the latter says it all, Keiron. This is AoS: a subjectivist forum where we trust our ears.

I couldn't give the slightest tossing wank about measurements, as they rarely tell the full story. Others and I use MN bearings because we can clearly, repeatedly and very genuinely, hear the improvements that they bring over "the stock arrangement".

Why you feel qualified to discredit an item you haven't even heard beggars belief

All this idle theorising as to whether or not the bearing base plate 'works' or not is irrelevant, as I'll soon know if it does when I listen!



Marco.

[Marco]

Just re-reading this, and it made me think of something you mentioned on the FX1200 thread - "expectation bias."

I hope it works out for you, as it's a one way trip. One I am not prepared to take.

No worries. Expectation bias is always a possibility, such is human nature. Thing is, if an improvement isn't genuine, it'll always show itself up as such in the end. However, I don't foresee that happening with the BBP.

As always, full report to follow, once it's been fitted

Marco.

[keiron99]

Why you feel qualified to comment on an item you haven't even heard beggars belief.

Marco.

But I didn't comment on it?

I have to confess I hadn't realised this was a purely subjectivist forum. Shame, as I enjoy learning about the technical aspects. A pity that discussion of "facts" appears to be forbidden. But there we are.

[Marco]

You sought to discredit it, whilst having zero practical experience of using it. That's just as bad!

The only "facts" relevant in hi-fi, in terms of musical enjoyment, are what the listener considers sounds best - end of. That aside, I certainly won't have this thread derailed by pointless and unwanted objectivist dogma.

Technical aspects are important up to a point, but proper learning in hi-fi is achieved through the practical experience of listening. In that respect, I'd draw your attention to the quote in my signature from Immanuel Kant, underneath this post, highlighted in blue.

As for this being a subjectivist forum, Keiron, didn't you read Our Ethos before you joined? Our 'colours' are very clearly nailed to the mast therein (especially from post #5 onwards):

http://theartofsound.net/forum/showt...asics-of-Ethos

Marco.

[Andrei]

So, you are talking about vibrations generated by the bearing, rather than those fed to the bearing. There are two sets of bearing contact faces. Those attached to the platter spindle and those attached to the TT base (unless you are dealing with an inverted bearing) and these are separated by lubricant as I earlier indicated, any noise generated here would be rumble. The effects of lubricant would still be a factor.

I thought we were talking about a comparison of two. One being the the TT base, ie the point at which the bearing rests on the base plate. The other being vibration (if any) ultimately fed into the base from the stylus.

[walpurgis]

I don't really see how we can take this any further without measurements to confirm or disprove vibration effects. I'm sure it's not something I've noticed having an influence with any TT I've used.

[Mike_New]

Folks,
Some people have stated that they would not try the Bearing Base Plate as it is a one way trip.
At least in as much as it would be difficulkt to remove.
The older followers of this forum will remember that my original design provided for bolting the BBP to the chassis. However this was regarded by most as being a bit beyond the quantum of most DIYers.
Subsequently I evolved the bonding option which is a lot simpler and possibly superior.
I or David can provide either.

[MartinT]

It's a one-way trip but you're not taking a very big jump since a) you're unlikely to want to go back once you've heard it and b) there are plenty of spare chassis or beaten up SL-1200s on eBay for you to swap everything back over to.

[Joe]

It's a one-way trip but you're not taking a very big jump since a) you're unlikely to want to go back once you've heard it and b) there are plenty of spare chassis or beaten up SL-1200s on eBay for you to swap everything back over to.

Dunno about subjectivist, this is getting close to faith-based audio!