Post by sub on May 23, 2020 14:37:11 GMT 12
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Post by michaelw on May 23, 2020 15:13:21 GMT 12
$1595 !
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Post by cartridgeguyonline on May 23, 2020 16:55:10 GMT 12
I suppose since they only ever sell you one turntable per lifetime they have to make their income somewhere !
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Post by andrewp on May 23, 2020 18:00:42 GMT 12
The best upgrade is to sell it..
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Post by Owen Y on May 23, 2020 19:51:12 GMT 12
The Dean & John Show is still running.... it must be around 40 years now?
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Post by michaelw on May 23, 2020 20:38:24 GMT 12
pretty close, i bought my linn in 1982 after one of the then linn distributor avalon's linn/naim roadshows. the polished routine sold a few LP12's that night. 
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Post by andrewp on May 24, 2020 8:09:40 GMT 12
One of the reasons Linn did so well when they first came out was the manuals and instructions were in English. Alot of their Japsnese counterparts were not which put alot of people off....true story.
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Post by cartridgeguyonline on May 24, 2020 9:38:24 GMT 12
One of the reasons Linn did so well when they first came out was the manuals and instructions were in English. Alot of their Japsnese counterparts were not which put alot of people off....true story. yeah right...
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Post by michaelw on May 24, 2020 10:50:41 GMT 12
what manuals ?
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Post by cartridgeguyonline on May 24, 2020 10:55:51 GMT 12
I dont remember any manuals when I bought mine in the mid 70's either. I particularly recall there were no setting up instructions or anything as it all had to be returned to a dealer who was trained in the dark arts...
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Post by andrewp on May 24, 2020 12:33:58 GMT 12
Ok you clearly know better. It was something I was told a few years back by someone in the industry I would respect.
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Pundit
Post by LinnBoy on May 24, 2020 14:11:18 GMT 12
Talking to my friends and colleagues I respect in the UK Linn fraternity, this bearing is a significant and high value upgrade, and besides, its St Ivor...
I am a non-recovering audioholic, and Ivor is my higher power.
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Pundit
Post by cartridge on May 24, 2020 17:47:29 GMT 12
The Dean & John Show is still running.... it must be around 40 years now? It's mainly Dean now, John has all but stepped aside. Actually, it's the Dean and Deb's show really, but who's counting?
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Post by Owen Y on May 24, 2020 20:26:45 GMT 12
[It's mainly Dean now, John has all but stepped aside. Actually, it's the Dean and Deb's show really, but who's counting?
Pass on my regards, next time.
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Post by Owen Y on May 24, 2020 20:34:34 GMT 12
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Post by cartridgeguyonline on May 27, 2020 17:08:29 GMT 12
Its not just a bearing then ! A shame theres not any cutaway diagrams or anything of the bearing itself, all looks a little ordinary tbh.
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Post by Owen Y on May 27, 2020 20:01:25 GMT 12
Yes. it is just a bearing 
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Pundit
Post by LinnBoy on May 28, 2020 7:37:22 GMT 12
Ivor with a hacksaw and a bottle of oil under his arm is always going to be more than “just a bearing’. :-)
I am a non-recovering audioholic, and Ivor is my higher power.
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Post by Owen Y on May 28, 2020 10:38:19 GMT 12
750 squid for a bearing 
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Post by cartridgeguyonline on May 28, 2020 12:32:02 GMT 12
From what I could see it was more than just the bearing as the kit comes with springs and bushes and all sorts. Would admit to being a bit disappointed in the bearing itself being nothing more technically intriguing than a variation of the old ball bearing in a well of oil....
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Post by Owen Y on May 28, 2020 14:05:26 GMT 12
Ah OK, you get a sub-platter too.... plus a few rubber grommets, springs, a pc of wire & a vial of 12-year old, oak-barrel aged, peaty-black bearing oil. 
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Pundit
Post by peter0c on May 28, 2020 16:46:55 GMT 12
A quick factoid for those who like to fiddle. One problem with the LP12 and its forbears is that each of the three springs carries a different weight leading to horizontal instability. One carries most of the weight of the platter, another most of the weight of the arm and the third least of all. Ideally then each spring should be of a different tension but they are not. Here's the thing, the springs for the LP12 (these have differing tensions over various upgrades), the Thorens TD150 and TD 160 (dunno about the TD125) and the original AR1 are ALL EXACTLY of the same height, the same diameter on the bottom and the same diameter on the top. Who would have thought! The AR1 was a very light turntable and hence the springs are softer, next up is the Thorens and the 'strongest' of all is the Linn. So it is a simple matter of putting an AR spring at the point where there is the least weight (only if you you have the original felt mat or otherwise use a Thorens spring) and so on.
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Post by cartridgeguyonline on May 28, 2020 17:25:49 GMT 12
Wouldnt that have some adverse effect on the resonant frequency that the suspension is tuned to ?
Graham ?
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Post by michaelw on May 28, 2020 17:57:57 GMT 12
has anyone removed the springs from a linn suspension like the thorens mods ?
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Post by cartridgeguyonline on May 28, 2020 19:00:06 GMT 12
Theres a Thorens mod that removes the springs: Why ?
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Post by michaelw on May 29, 2020 11:01:29 GMT 12
there was a long article on analog dept but i couldn't find it, so this forum mention will have to do
VPI did a similar thing with their HW19 turntable, that started with the sub-chassis sitting on springs and finished production with the springs gone, replaced with Sorbothane pucks.
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Pundit
Post by peter0c on May 29, 2020 13:07:36 GMT 12
I certainly don't recommend destroying a perfectly good Thorens in order to improve a Linn. I started with 2 old ARs (donating 6 springs) and re-sprung 4 Thorens liberating either 1 (for heavier new arms) or 2 springs (for lighter new arms) and using either one or two of these Thorens springs on 2 Linns using the same logic. I have four Thorens springs left over (one is softer than the others) which I am happy to donate one to any member who wants to try it on their Linn. I suggest replacing just one Linn spring first - the one carrying the least weight. In response to the question about this changing the resonant frequency of the platter arm combination, yes it would slightly. The optimum turntable tuning frequency is about 4 hz with the caveat that it has to be lower than the resonant frequency of the arm and importantly, not a function (e.g. 1/2 or 1/4) of that frequency. The kind of arm that you use (high mass, medium or low mass) is determined by the compliance of your chosen cartridge - the compliance is in fact another measure of resonance. There is quite a lot of folk-law on Linns (magic armboards, only being able to be tuned by their technicians etc) so I was rather struck to find that the same profile springs were used on the three turntables cited - and possibly by Ariston, Sota and others which is quite common in the industry. In the 1970s and 80s for example nearly all speaker cones in the USA were manufactured by AR, in the 1980s and early 90s Goodmans made the cones for Tannoy who had a factory fire, Castle made the cabinets for 3 of their competitors and currently at least 4 US$10k USA speaker manufacturers use a quite cheap Eminence 12 inch driver whilst more than one European manufacturer used OPPO innards in their approximately Euro8k CD players.
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Post by Graham on May 29, 2020 14:12:46 GMT 12
Careful Peter, you are in danger of being abused or attacked by angry Linnies for daring to suggest that Linn suspension is not unique and magic !!  AR used a stronger spring near the tonearm to compensate for the additional weight in the RH rear corner of the subchassis but I'm not aware of anyone else bothering to do this. As an alternative to selecting springs of different strength as you have suggested, I have experimented with adding a counterweight to the LH front corner of the subchassis to even up the weight distribution on both AR and Thorens turntables. This was achieved using an arm extending as far as possible into the LH front corner of the plinth with a suitable weight attached. This was also mounted as low as possible to lower the centre of gravity of the subchassis which I felt was beneficial. The evening up of the weight distribution plus lowering the centre of gravity certainly resulted in a nice even bounce, but I can't honestly claim any improvement to the sound !!
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Post by michaelw on May 29, 2020 16:32:13 GMT 12
SOTA doesn't belong with the Linn/Thorens gang,
the latter sub-chassis' sit on the springs,
a sota sub-chassis hangs from the springs and uses a four-point suspension.
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Pundit
Post by peter0c on May 29, 2020 17:01:28 GMT 12
Good alternative solution Graham. I can't say that I noticed any difference either but a) it wasn't any worse and b) made logical sense. Michael hanging on springs would be more stable - and is said to be a permanent solution. Three point is easier to balance than four. Think of tables and stools. Who cares, enjoy the music.
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K 
