Ralf11 Posted August 4, 2019 Share Posted August 4, 2019 Hey man - audio is special!! botrytis 1 Link to comment
botrytis Posted August 4, 2019 Share Posted August 4, 2019 33 minutes ago, Ralf11 said: Hey man - audio is special!! 210K for the instrument, special? Noise affects an MS more than any music file. Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
Ralf11 Posted August 4, 2019 Share Posted August 4, 2019 oh yes! remember, science does not apply !! botrytis 1 Link to comment
botrytis Posted August 4, 2019 Share Posted August 4, 2019 1 minute ago, Ralf11 said: oh yes! remember, science does not apply !! Some of the classic Urban Legends that can't be proven but people still believe. Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
Popular Post mansr Posted August 4, 2019 Popular Post Share Posted August 4, 2019 32 minutes ago, botrytis said: 210K for the instrument, special? Noise affects an MS more than any music file. Mass spectrometer? Next time the damn thing flags me at the airport, I'll tell them it's because of the dodgy power supply. Ralf11 and marce 2 Link to comment
botrytis Posted August 4, 2019 Share Posted August 4, 2019 13 minutes ago, mansr said: Mass spectrometer? Next time the damn thing flags me at the airport, I'll tell them it's because of the dodgy power supply. A GC-MS - for chemical analysis. Well, this is how they are built. Not dodgy at all. Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
Ralf11 Posted August 4, 2019 Share Posted August 4, 2019 maybe the problem is in the USB cables? Link to comment
botrytis Posted August 4, 2019 Share Posted August 4, 2019 1 minute ago, Ralf11 said: maybe the problem is in the USB cables? USB used to be used, now they use Ethernet cables..... Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
botrytis Posted August 4, 2019 Share Posted August 4, 2019 1 minute ago, Ralf11 said: well then the transformers must be inadequate wait! manis is a revered scientist - I bet he can fix it via remote control - maybe do away with the need for actual data all together I am also a Scientist Ph.D also. Jes saying..... Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
mansr Posted August 4, 2019 Share Posted August 4, 2019 6 minutes ago, Ralf11 said: wait! manis is a revered scientist Correction: reversed. Link to comment
manisandher Posted August 4, 2019 Share Posted August 4, 2019 31 minutes ago, Ralf11 said: well then the transformers must be inadequate wait! manis is a revered scientist - I bet he can fix it via remote control - maybe do away with the need for actual data all together Been around here for 10 years, never had much of an issue with anyone. daverich4 1 Main: SOtM sMS-200 -> Okto dac8PRO -> 6x Neurochrome 286 mono amps -> Tune Audio Anima horns + 2x Rotel RB-1590 amps -> 4 subs Home Office: SOtM sMS-200 -> MOTU UltraLite-mk5 -> 6x Neurochrome 286 mono amps -> Impulse H2 speakers Vinyl: Technics SP10 / London (Decca) Reference -> Trafomatic Luna -> RME ADI-2 Pro Link to comment
Ralf11 Posted August 4, 2019 Share Posted August 4, 2019 I find it hard to believe you are a scientist, as you don't act like one. Link to comment
kumakuma Posted August 4, 2019 Share Posted August 4, 2019 6 minutes ago, Ralf11 said: I find it hard to believe you are a scientist, as you don't act like one. He used to be a scientist. According to his website, he's now a management consultant. Sometimes it's like someone took a knife, baby Edgy and dull and cut a six inch valley Through the middle of my skull Link to comment
manisandher Posted August 4, 2019 Share Posted August 4, 2019 5 minutes ago, Ralf11 said: I find it hard to believe you are a scientist, as you don't act like one. Many moons ago. Anyway, as Chris said, let's give it a rest. wgscott 1 Main: SOtM sMS-200 -> Okto dac8PRO -> 6x Neurochrome 286 mono amps -> Tune Audio Anima horns + 2x Rotel RB-1590 amps -> 4 subs Home Office: SOtM sMS-200 -> MOTU UltraLite-mk5 -> 6x Neurochrome 286 mono amps -> Impulse H2 speakers Vinyl: Technics SP10 / London (Decca) Reference -> Trafomatic Luna -> RME ADI-2 Pro Link to comment
manisandher Posted August 4, 2019 Share Posted August 4, 2019 1 minute ago, kumakuma said: He used to be a scientist. According to his website, he's now a management consultant. Oh FFS... wgscott 1 Main: SOtM sMS-200 -> Okto dac8PRO -> 6x Neurochrome 286 mono amps -> Tune Audio Anima horns + 2x Rotel RB-1590 amps -> 4 subs Home Office: SOtM sMS-200 -> MOTU UltraLite-mk5 -> 6x Neurochrome 286 mono amps -> Impulse H2 speakers Vinyl: Technics SP10 / London (Decca) Reference -> Trafomatic Luna -> RME ADI-2 Pro Link to comment
Blackmorec Posted August 5, 2019 Share Posted August 5, 2019 Just to mention that the noise that affects a mass spectrometer is, generally speaking a different type of noise to that which affects audio. Essentially we are looking at chemical noise (background ions) that mask the presence of trace substances. Also there are many different types of mass spectrometers, with resolution ranging from 1 mass unit to 1 millionth of a mass unit or beyond, so the power supply needs vary much like audio. It wouldn’t make sense for a manufacturer to build in an expensive linear supply when the sensitivity is several orders of magnitude away from requiring one. Also to mention, the vast majority of mass spectrometers plug directly into the lab’s mains supply and would not benefit from a better source of power due to the fact that noise of a different type is far more pervasive. Link to comment
sandyk Posted August 5, 2019 Share Posted August 5, 2019 6 hours ago, Ralf11 said: I find it hard to believe you are a scientist, as you don't act like one. Youi certainly don't act like one, at least not in this forum. daverich4 1 How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to comment
marce Posted August 5, 2019 Share Posted August 5, 2019 Hmmm Not the electronics... They are subject to noise. Link to comment
manisandher Posted August 5, 2019 Share Posted August 5, 2019 7 hours ago, Ralf11 said: from his web site, it appears he never made it to the PhD level - so unclear that he really was a scientist I'm glad to see he was in physics tho and not astrology You've averaged well over 10 posts a day for nearly 3 years. This can't be healthy. Perhaps give it a break (if not for your sake, for the sake of others)? opus101 1 Main: SOtM sMS-200 -> Okto dac8PRO -> 6x Neurochrome 286 mono amps -> Tune Audio Anima horns + 2x Rotel RB-1590 amps -> 4 subs Home Office: SOtM sMS-200 -> MOTU UltraLite-mk5 -> 6x Neurochrome 286 mono amps -> Impulse H2 speakers Vinyl: Technics SP10 / London (Decca) Reference -> Trafomatic Luna -> RME ADI-2 Pro Link to comment
Blackmorec Posted August 5, 2019 Share Posted August 5, 2019 57 minutes ago, marce said: Hmmm Not the electronics... They are subject to noise. The point is that the electronic noise from existing SMPSs doesn’t really matter. Remove all the electronic noise and the needles that you’re mostly interested in, namely resolution and sensitivity will hardly move. Manufacturers spend money where is has an impact....better ion sources, better ion filters, greater inertness and lower noise detectors. Link to comment
sandyk Posted August 5, 2019 Share Posted August 5, 2019 33 minutes ago, Blackmorec said: The point is that the electronic noise from existing SMPSs doesn’t really matter. That is incorrect. It can result in a greatly diminished S/N for CD/DVD players etc. If you are interested, I can PM (FYI ONLY) you an article from Silicon Chip magazine on the subject, complete with measurements Regards Alex How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to comment
mansr Posted August 5, 2019 Share Posted August 5, 2019 2 hours ago, manisandher said: You've averaged well over 10 posts a day for nearly 3 years. This can't be healthy. Perhaps give it a break (if not for your sake, for the sake of others)? Oh look, he's a (mental) health expert too. Truly a man of many talents. daverich4 and Ralf11 1 1 Link to comment
sandyk Posted August 5, 2019 Share Posted August 5, 2019 35 minutes ago, mansr said: Oh look, he's a (mental) health expert too. Truly a man of many talents. How a Digital Audio file sounds, or a Digital Video file looks, is governed to a large extent by the Power Supply area. All that Identical Checksums gives is the possibility of REGENERATING the file to close to that of the original file. PROFILE UPDATED 13-11-2020 Link to comment
marce Posted August 5, 2019 Share Posted August 5, 2019 2 hours ago, sandyk said: That is incorrect. It can result in a greatly diminished S/N for CD/DVD players etc. If you are interested, I can PM (FYI ONLY) you an article from Silicon Chip magazine on the subject, complete with measurements Regards Alex Its a specific side discussion, regarding spectrometers... Link to comment
botrytis Posted August 5, 2019 Share Posted August 5, 2019 6 hours ago, Blackmorec said: Just to mention that the noise that affects a mass spectrometer is, generally speaking a different type of noise to that which affects audio. Essentially we are looking at chemical noise (background ions) that mask the presence of trace substances. Also there are many different types of mass spectrometers, with resolution ranging from 1 mass unit to 1 millionth of a mass unit or beyond, so the power supply needs vary much like audio. It wouldn’t make sense for a manufacturer to build in an expensive linear supply when the sensitivity is several orders of magnitude away from requiring one. Also to mention, the vast majority of mass spectrometers plug directly into the lab’s mains supply and would not benefit from a better source of power due to the fact that noise of a different type is far more pervasive. No - there is also electrical noise. Because the basic way to detect is change in voltage, for a peak. Really it is very simple. Yes, you are right but most use EI not CI. No lab I have worked in have MS plugged directly into the lab mains. Sorry no and I have worked in this field since 1983. There are too many other pieces of equipment that draw more power than that. Also, most labs have a backup power system and that is noisier (on start up) than regular power. Current: Daphile on an AMD A10-9500 with 16 GB RAM DAC - TEAC UD-501 DAC Pre-amp - Rotel RC-1590 Amplification - Benchmark AHB2 amplifier Speakers - Revel M126Be with 2 REL 7/ti subwoofers Cables - Tara Labs RSC Reference and Blue Jean Cable Balanced Interconnects Link to comment
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