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Richardl60
Senior Member Joined: 04 Nov 2014 Location: Yorkshire Status: Offline Points: 1468 |
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I believe in a post last year someone suggests Jeff at Audiomods may have been a potential outlet for your line of thinking was that one of the ones tried?
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BackinBlack
Senior Member Joined: 05 Feb 2012 Location: Hinton, N'hants Status: Offline Points: 2020 |
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The interference from the connected world must also have a similar effect on all those naked glowing bottles in esoteric pre-amps and amplifiers. Is this why the perceived sound of themionic devices is becoming ever more fashionable in the audiofool world?
Edited by BackinBlack - 17 Sep 2017 at 2:44pm |
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Just listen, if it sounds good to you, enjoy it.
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BAK
Senior Member Joined: 14 Mar 2010 Location: Kentucky, USA Status: Offline Points: 1744 |
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Edited by BAK - 17 Sep 2017 at 6:09pm |
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Bruce
AT-14SA, Pickering XV-15, Hana EL, Technics SL-1600MK2, Lautus, Majestic DAC, Technics SH-8055 spectrum analyzer, Eminence Beta8A custom cabs; Proprius & Reflex M or C, Enjoy Life your way! |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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After many hours (today) of modifying a Technics SL1200 MKII by connecting its two "-" terminals to the main earth "E". This is a photo of an unmodded arm base, but shows the respective terminals.
Then modifying the headshells of the Denon DL103 and Hana EL so the negatives go to the headshell metal work and not the arm wires... Such that the arm and arm cable afford 360 degrees shielding except for the cartridge itself, I don't have anywhere as much interference. And the arm earth wire is not used because it would form a hum loop. Remember this? Now it's like this... Which shows how antiquated arm shielding is!!! The way it should be. The way it was on 1950's HMV record players! Is continuous shielding from cartridge pins to amplifier input! The interference is reduced by a factor of 3.5, and is much more manageable. It also sounds much better, without that piercing and deafening high frequency whizzer effect that is so annoying to me. I can hear the wet finger running round the rim of a wine glass on Supertramp's Dreamer. I can hear the train carriages go by on the intro to Rudy. Completely hidden by the 'connected world' before now. I have bass a plenty. Layered and with the right amount of muscle (some call it grunt). More than that I have melody! What stage am I using? The 'abandoned' Accession MC! Abandoned for being innocent!!! There's no way I can release such a fantastic stage to an audience without a clue. |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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Richardl60
Senior Member Joined: 04 Nov 2014 Location: Yorkshire Status: Offline Points: 1468 |
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Presumably this will depend heavily on the arm used and presumably of the material (if I am reading this correctly) using the arm as the earth?
Your findings being the case does this impact on the Accession MC more than the mm+EXP.? |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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The interference still exists whether it's an EXP or Accession. The Accession circuit is higher performance in a number of ways though. If given a clean signal it will amaze. If given a dirty signal you'll hear dirt.
As the traces show there isn't any interference worth noting much below say 50MHz, and that tells you that a standard size arm will shield up to the 30MHz I have always claimed - so long as it's metal. But as the traces show, it is wide open to all the 'connected world' frequencies, unless modified to provide proper shielding. Obviously a plastic arm (carbon fibre) will not provide effective shielding against our 'connected world' so perhaps Andrew's suggestion of a lead box would come in here I often wonder what the hi-fi industry is about. From my standpoint much of it looks like utter BS. Of course, some of it is gold-plated, but it's still a |
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That none should be able to buy or sell without a smartphone and the knowledge in how to use apps
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Richardl60
Senior Member Joined: 04 Nov 2014 Location: Yorkshire Status: Offline Points: 1468 |
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Graham to be clear and in the absence of a detachable headshell what would the wiring look like, +ves use the standard arm wiring so what would the -ves look like?
Sounds a bit like jump starting a car with a dead battery! Also given I have an eye on an Audiomods V; would this not work here as it has a rega armtube? |
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