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USB cable burn-in? |
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morris_minor
Moderator Group Joined: 27 Mar 2012 Location: Surrey Status: Offline Points: 6015 |
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Bob
Majestic DAC/pre-amp Accession MC/Enigma, Accession MM, Reflex M, Elevator EXP, Era Gold V Solo ULDE, Novo, Lautus USB and digital, Libran balanced, CuSat50 2 x Proprius + Spatia/Spatia Links |
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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Because of the attacks on us by cable skeptics, one of which resulted in Advertising Standards involvement, today we have invited Cherry Clough Consultants to audit what we do!
Some may recall Cherry Clough Consultants assisting Advertising Standards to disprove claims made by a distributor? That is exactly why we invited them! We attach great importance to making scientifically correct products and not making ridiculous claims. Maybe this will at last silence those skeptics so they go and pick on somebody else? |
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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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BAK
Senior Member Joined: 14 Mar 2010 Location: Kentucky, USA Status: Offline Points: 1744 |
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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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BackinBlack
Senior Member Joined: 05 Feb 2012 Location: Hinton, N'hants Status: Offline Points: 2020 |
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Good move.
Fighting fire with fire? However it goes against the grain to be reminded that we have to prove truth & honesty, the implication being that we start with lies not truth. |
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Just listen, if it sounds good to you, enjoy it.
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Graham Slee
Admin Group Retired Joined: 11 Jan 2008 Location: South Yorkshire Status: Offline Points: 16298 |
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A difference was measured between the source end of the Lautus USB and the other end (either side of its filter). We didn't dwell on that because at £200/hour we also wanted to do EMC checks on other products. The new phono stage passed with flying colours by the way.
Armed with the knowledge learned today we will be more confident in being able to present proper measurements which we can back up - we already can present proper audio frequency tests that can be backed up due to our calibrated analysers - but here we are talking of frequencies up to 1.5GHz (as required by EU legislation). Most audio manufacturers base compliance on assumptions, or worse they simply list some compliance standards to justify CE marking. A large US amplifier manufacturer (part of a well-known group) even lists the wrong standard. We plan to follow through our own consultant-assisted tests with independent certified test-house compliance testing. Yes, the inference from such as Advertising Standards seems to be we start from lies. I think that is because being small means we are easy prey. We will make sure that is no longer the case. Obviously we would never divulge anything said to us in confidence, but if asked how many manufacturers comply with CE marking, we might just knowledgeably answer, very few! Edited by Graham Slee - 17 Apr 2015 at 8:26pm |
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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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JamesD
Senior Member Joined: 05 Nov 2012 Location: Bolsover Status: Offline Points: 246 |
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Well done. At my previous place of employment we used a company called Compliance out at Great Hucklow who seemed to be very helpful with regards to sifting out what and wasn't required given the vast number of standards (some of which aren't that clear) in existence.
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Aren't ears brilliant
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morris_minor
Moderator Group Joined: 27 Mar 2012 Location: Surrey Status: Offline Points: 6015 |
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Good news about the EMC checks, Graham. But not surprising given the standards you design to.
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Bob
Majestic DAC/pre-amp Accession MC/Enigma, Accession MM, Reflex M, Elevator EXP, Era Gold V Solo ULDE, Novo, Lautus USB and digital, Libran balanced, CuSat50 2 x Proprius + Spatia/Spatia Links |
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