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Computer Audiophile


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    Artemis Cables

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  1. Can you show us how you wired it up? I reckon either LT3042 or LT3045 should work.
  2. I'm quite surprised you found any audible improvements in replacing those miniature regulators. What exactly did you replace it with?
  3. I only recommended the FR in digital or power stages. If you’re populating an amplifier circuit I recommend Elna Silmic II (RFS).
  4. I answered these questions 10-20 pages ago. You are more than free to listen to your ears. Technical specifications are more important in digital design than you think. If what you're using sounds good to you, stick to them. Nichicon FG is fine. It's not bad. They're just not optimal. Elna Silmic II (RFS) is one of the most popular audiophile capacitor. They have their benefits when used in certain parts of the circuit. A DAC, even while being digital, has some analog areas of it's own where ESR doesn't play a big role and material composition becomes more beneficial.
  5. There are many different ones listed, which one be the one? Also where did you get your carrier board? I mean you shouldn't be using analog capacitors (Elna RFS) on a digital board to begin with. Their ESR is much higher to where it's not even specified and the material dampening doesn't help for digital domain thus why you hear removal of high frequency detail and or bloating of the bass. For all Elna Silmic II that I use on analog domains such as amplifiers, the bass does increase and tighten itself over time. The overall sound smoothens and jarring treble softens up. Again, I would not use this within a DAC or Digital Transport.
  6. Interesting. I will get one to try out however at this point I find it hard for me to do A/B tests. I did the 24.000MHz modification and found some super small improvement but again, I don't know if it's placebo at this point so I'll just say it was only put in for good measure. Where did you source your downstream oscillators? Is it better specification than the Crystek CCHD-575? Did it come preloaded on those carrier boards or did you have to solder it yourself? I might as well go the extra mile and have all these mods done to my unit as well.
  7. Interesting modification. What is the specifications for the new regulator versus the old one? Could I get a part number? Have you done the oscillator mod? I think I will do this for the fun of it. It's hard to say that the overall jitter has been improved considering asynchronous technology but I reckon there may be some other influence it has that makes up the chain.
  8. I've been trying various mods however nothing still beats the LPS-1 + SU-1. Replacement of the internal voltage regulator for a SS1117 or LT3045 is a must. I have found no differences between the two to qualify higher costs so if you have time to wait, get the LT3045. I have been busy experimenting with PCM to Native DSD encoding lately on the Holo Audio Spring, more specifically playing PCM files through HQPlayer set to poly-sinc-xtr (and -mp) followed by DSD512 bitrate conversion which takes 10 CPU cores just to process. For once my hobby in building gaming computers directly correlate to better sound quality. I would recommend anyone with a Windows computer to try it out if you have a DAC that supports DSD like the Spring. There is a free trial for HQPlayer as well as J.River Media Center. Use poly-sinc-xtr-mp-2s instead if your computer cannot handle the other higher processing filters available on HQPlayer. There are no filters to pick from on J.River Media Center so it would be an easier solution.
  9. I do not agree with that review.
  10. Aerosmith has spoken! I will be getting my replacement ISO REGEN in the mail today!
  11. I have a question.. What is the most updated driver and firmware currently available for the SU-1? I'm using the version before DSD512 support (maybe 2.0?). Listening with a MacBook Pro (Apple) so I don't think Holo Audio Signed Drivers will work for me as mine is supported natively and named "USB Audio 2.0(SU1)".
  12. I laughed reading your post because I thought the same too when I replaced the XMOS's stock 24MHz crystal oscillator with the lower ppm Abracon ASTX-H11. It doesn't make too much sense that the sound got better since all the data goes past the digital isolators and into the FPGA to be reclocked anyway by the CRYSTEK CCHD-575 so I brushed off that idea. The lower ppm should only help with long term drift but perhaps the phase noise or other specs did something. It may just be a placebo thought but nonetheless I am happy that I replaced it anyway. What's imagined can only be beneficial in this context and besides, it was only two dollars and since the SU-1 was being modified, why not just add it in for slight internal satisfactory gains. However only a handful of people are able to do this though upgrade as there is solder on four corners of the oscillator and you'll need a special tool to remove it. That is.. unless you break the oscillator with a nail clipper like I did and cleaned up the soldering pads prior to soldering the new one on. LT3045 has slightly lower noise but PSSR isn't as good as the Sparkos Labs SS1117. I would go with the LT3045 to save money, but if money wasn't a concern I would go with the SS1117 for the faint of heart or to feel a better sense of security that it handles with incoming voltages better.
  13. Thanks for helping him out @elan120 Checking the specs for these polymer caps, I thought they would have better endurance (life) but I guess not. Eh. Still, they are great capacitors and I would happily replace them whenever needed in the future. If I had to do regulator upgrade all over again I would use the LT3045, upgrade to five Nichicon R7's, and probably leave the four multi-layer ceramic capacitors alone.
  14. I don't believe you'll need to change the capacitors or have any need to remove the ceramics if you are using the LT3045. They have the required ceramics on board and the 4 MLCC shouldn't hurt. Just keep all five electrolytic capacitors Nichicon R7 220µF 6.3V. I'm sure @scan80269 has a better explanation on the matter.