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#2321 |
Guest
Posts: n/a
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I am proud to be an engineer, and am sticking with calculated designs and measured results.
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#2322 | |
Heptode
Join Date: Oct 2007
Location: Southampton, Hampshire, UK.
Posts: 927
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However I'm also proud to be an audiophile who appreciates superb sound and realises that, unfortunately, you have to spend decent money to get this and that not everything expensive is simply bling boutique tat designed by cynical opportunists to empty your wallet and do little else. |
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#2323 |
Heptode
Join Date: Oct 2011
Location: Culcheth, Cheshire, UK.
Posts: 742
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#2324 |
Banned
Join Date: Jun 2015
Location: Mareeba, North Queensland, Australia
Posts: 2,704
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Love that!!!! It especially sounds good with 17 1/2 plums in the announcer's mouth.
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#2325 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Well nowt has changed that much in over 60 years, that is perfectly clear
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#2326 | |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 24,234
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It is also far easier to put a high price on a piece of low performance gear than it is to put high performance in a piece of low price gear. Who said the universe had to be fair? Or symmetrical? David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
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#2327 | |
Nonode
Join Date: Aug 2008
Location: Rayleigh near Southend-On-Sea, Essex, UK.
Posts: 2,165
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I have done exactly that. Recently we designed an amplifier with both a good technical and sonic performance with an entry level price tag (that’s the sales name for it) which had to be entirely made in the UK. We did it, but it wasn't that easy – can’t say it did our nerves any good though. Sadly, we didn’t have the budget for a symmetrical design ![]() ![]() Ps. And there was EMC compliance to do as well... augh ![]() Regards Terry |
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#2328 |
Heptode
Join Date: Jun 2019
Location: Oxfordshire, UK.
Posts: 896
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Every hifi needs a gold plated plug with... a gold plated fuse!
https://www.mcru.co.uk/product/mk-toughplug-various-platings-available-3/ |
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#2329 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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3.5 times the price of a standard MK toughplug. Given that they have to be disassembled, sent for gold plating, reassembled, and a profit made, I'd argue that the price of £24 is not price gouging. Whether or not it makes any difference to the sound quality is another thing.
There are far more ridiculous mains components out there https://www.futureshop.co.uk/brands-category/furutech/furutech-uk-mains-plugs And £155 for a mains fuse https://www.futureshop.co.uk/synergistic-research-orange-high-end-slow-blow-fuse . The US manufacturers of that fuse are the crew that say they have been treated with 1,000,000 volts, which we've correctly ridiculed earlier in this thread. Craig |
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#2330 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 24,234
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Presumably the cryogenics crowd also get in on the act for perhaps a further 50% mark-up?
But which should be done first? the 1,000,000 volt treatment or the 77 Kelvin one? Would liquid helium treatment sound even better? Skilled listeners with the goldenest of ears need to find out and tell us. David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
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#2331 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Oddly enough we used 77K treatment as part of the machining process at Oxford Instruments. Rough machine the magnet former, lower it by crane into a huge bucket dewar filled with LN2. When fully cold hoik it out and leave it to warm. Then final machine.
Without the cryogenic annealing process, the final machining had enough inbuilt stress to be out of true when at LHe temperature and the superconducting magnet would fail to reach field. So does 77K treatment change the structure of a mechanical part? Yes it does. Craig |
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#2332 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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And we used to use Allen Bradley 100 ohm carbon composition resistors. Turns out that they had very predictable temperature coefficient of resistance at low temperature.
So we had a variable temperature insert where we could take the temperature of the business end from 77K and upwards, with the control made with reference to a traceable standard. At the bottom were a whole load of the AB resistors. There was a major panic when AB discontinued their carbon composition manufacture. We cornered around 10,000 of them to make sure we could continue to supply calibrated sensors into the future. Nothing to do with use of this type of resistor in audio, which is apparently sought after by the valved crew. Craig |
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#2333 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Here we go. The Quantum Burning Technology device for burning in audio cables to improve their performance.
https://telos-audio.com.tw/qbt-cable-run-in-machine/ The price to you, gullible sir, is 20,000 smackers. And that is just one of the daft things he sells for big money. Have a look around his website. Quantum this, quantum that. Does no one tell these people that quantum phenomena have an inherent uncertainty? Craig |
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#2334 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 5,644
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Yes - Quantum Damping https://telos-audio.com.tw/quantum-damping/
"The quantum spacer is a film made of 11 different chemical materials mixed with silicone. The main components are graphene, rare earth and various materials that produce far infrared rays." Well, it will only do that if it is not in thermal equilibrium with the environment. And if not in thermal equilibrium heat will either flow into this nonsense or be radiated by it according to the laws of thermodynamics. |
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#2335 |
Guest
Posts: n/a
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I note the use of mF for micro Farad.
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#2336 | |
Octode
Join Date: Mar 2016
Location: London, UK.
Posts: 1,297
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There are plenty of other quotes on that site. Recommended reading for any 'phool. |
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#2337 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,614
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Clearly those microfarads are 1000x better than the ordinary everyday ones
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
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#2338 |
Guest
Posts: n/a
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Well it is Tos*** anyway.
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#2339 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 24,234
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One of the broken symmetries of the universe is that it is easier to sell a human a stupid idea than it is to convince him that it is stupid.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
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#2340 |
Octode
Join Date: Mar 2016
Location: London, UK.
Posts: 1,297
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“It's Easier to Fool People Than It Is to Convince Them That They Have Been Fooled.” – Mark Twain
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