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sandyk

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About sandyk

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    Cooranbong NSW Australia

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  1. sandyk

    MQA The Truth lies Somewhere in the Middle

    It could be interesting to see a report from somebody like Barry Diament , with a few of his more recent high res recordings compared with and without MQA processing ?
  2. sandyk

    MQA The Truth lies Somewhere in the Middle

    I replied to this because Lee was taken to task by Samuel T Cogley in this thread for reporting similar.
  3. sandyk

    MQA The Truth lies Somewhere in the Middle

    This isn't the only site that Dale has been banned from. Nevertheless, the conspiracy theorist, and redneck did post some pretty good headphone reviews. He doesn't believe that they could have got to the moon because of the Van Allen radiation belt among other things.
  4. sandyk

    MQA The Truth lies Somewhere in the Middle

    If that is correct, then it's completely unacceptable !
  5. I bet that you can't blame someone else for creating all the "noisemakers" though !
  6. sandyk

    MQA vs HiRez: an apples-to-apples comparison

    I reported hearing the same to Mani via a PM several hours ago.
  7. sandyk

    Fas42’s Stereo ‘Magic’

    I don't know where they got the ".flac'' bit from as it's only 125Kilobits 44.1Khz !
  8. sandyk

    LT3045

    Alexey That's pleasing to see. Perhaps the most common voltage requirements for dual rail supplies in Instrumentation, Preamplifiers, Phono Preamplifiers and DACs etc. would be + -5V, + -12V and + -15V which are also common opamp supply voltages. Regards Alex
  9. sandyk

    LT3045

    Yes, he could use the LT3045A 1A modules as you suggested, but not a standard LT3045 .5A single regulator. It would be an advantage though if he was able to reduce the output of the 9V Linear PSU . It may even have an adjustable trimpot, so that only 1 LT3045A module could be used ? The LT3094 is too new to be available on ebay as a completed -VE output regulator PCB , but I doubt that it will be too long before the low noise dual polarity versions become available from some enterprising entrepreneur on ebay to replace the numerous older dual supplies using the old LM317 and LM337 voltage regulators . Many DACs and Preamps use dual polarity PSUs to power the output IC.s (e.g. +15V and -15V) Using dual polarity PSUs means that the output of the I.C does not need to use an output coupling capacitor as the output varies either side of 0 volts ( earth)
  10. sandyk

    MQA The Truth lies Somewhere in the Middle

    Then you are no better than the talking heads from MQA that you despise so much !
  11. sandyk

    LT3045

    You would need to check the specs for your old Intel SSD, but it is likely to drag around 500mA during intense writing sessions. Personally, I would use a PSU capable of 1A continuous at 5V to power an internal (?) SSD. The size of the heat sink used will mainly govern it's continuous current consumption capabilities.
  12. sandyk

    MQA The Truth lies Somewhere in the Middle

    I get it that you don't like MQA, and question the need for it as I do, when it can't possibly be any better than the high res versions already available for download, and almost certainly not quite as good. However , do you have to be so bloody rude about it while continually repeating the same old tired images ?
  13. sandyk

    Fas42’s Stereo ‘Magic’

    https://au.rs-online.com/web/p/rca-connectors/4848884/
  14. sandyk

    Fas42’s Stereo ‘Magic’

    George Unfortunately,. almost all modern versions of the Gold RCA sockets are no longer able to be pulled apart to retension the centre mating pins . They have to be replaced. Alex
  15. sandyk

    LT3045

    When running the various LT3045 modules near their maximum current rating (a single LT3045 is rated at .5A maximum) it is best to keep the input voltage only a volt or 2 above the required output voltage to avoid overheating problems . Yes, Abtr is correct. When "daisy chaining" LT3045 modules you will degrade the earth reference unless the leads are kept very short, and run the risk of those leads picking up RF/EMI. Unless you add some higher capacitance values at their inputs you will also exaggerate HF detail due to the low value tantalum or ceramic capacitors they use for bypassing purposes. This isn't normally a problem where the LT3045 is used immediately after a bridge rectifier using typical large value filter capacitors such as 2,200uF or 4,700uF. However, daisy chaining them may lead to excessive HF detail such as an overblown soundstage or a little added sibilance. Incidentally, the manufacturers of the LT3045 make no claims for it's suitability for high quality Analogue Audio in their Data sheets, although if you add the higher value capacitors it will certainly work very well. To achieve a good tonal balance you may also need to use a larger value normal electrolytic capacitor in parallel at it's output, (e.g. 100uF) which will reduce it's maximum speed, but this shouldn't matter much with Analogue Audio. If properly implemented, In combination with the just released LT3094 it would make an excellent dual polarity VERY low noise PSU for Preamplifiers, Phono Preamplifiers, DACs etc. Alex
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