Regarding switch mode power supplies (SMPS). I too like to keep those out of my system if possible. And here I'm talking about the cheap -universal- walwarts or universal SMPS inside of a device (like my Mutec). The Devialet too has a SMPS inside but it's developed in house by Devialet and fully tailored (shielded, isolated and extensively filtered) to the device it feeds. As always there's good and bad examples of both types of PSU's.
SMPS supplies -in general- generate more noise in higher frequencies and they have higher leakage currents than linear PSU's. Curing is more difficult than prevention. Uptone says the noise issue is smaller than the leakage issue, and this leakage issue is tackled by the LPS-1.
I just know I personally would like to tackle both. The nice thing about the LPS-1 is that it's output is always fully decoupled from it's input so this would allow you to feed it from a different AC circuit if you would have one near your system (and if that has it's own dedicated circuit). It's also possible to use an isolation transformer after the walwart, this is how Alex of Uptone uses his himself.
Of course there's also cheaper LPSU's to replace the SMPS walwart then the GBP295 MCRU PSU. EBay is full of them. But here things become difficult as one cannot see from the outside how good it is and measurements are rarely supplied by the vendor.
SMPS supplies -in general- generate more noise in higher frequencies and they have higher leakage currents than linear PSU's. Curing is more difficult than prevention. Uptone says the noise issue is smaller than the leakage issue, and this leakage issue is tackled by the LPS-1.
I just know I personally would like to tackle both. The nice thing about the LPS-1 is that it's output is always fully decoupled from it's input so this would allow you to feed it from a different AC circuit if you would have one near your system (and if that has it's own dedicated circuit). It's also possible to use an isolation transformer after the walwart, this is how Alex of Uptone uses his himself.
Of course there's also cheaper LPSU's to replace the SMPS walwart then the GBP295 MCRU PSU. EBay is full of them. But here things become difficult as one cannot see from the outside how good it is and measurements are rarely supplied by the vendor.
PS Audio P3, Shunyata ΞTRON Alpha Digital and HC/Furutech power cables, Paul Hynes SR7EHD-MR4, DIY Roon Server & Roon Endpoint running AudioLinux Headless, Phasure Lush^2 USB cable, Audioquest Diamond RJ/E ethernet, Uptone Audio etherREGEN, Mutec MC-3+ USB, Shunyata ΞTRON Anaconda Digital XLR AES/EBU, Devialet Expert 250 Pro CI, Nordost Tyr Reference LS cables, Von Schweikert VR-5 SE Anniversary Edition, Anti-Mode Dual Core 2.0, JL Audio Fathom F112. More detail here.
The Netherlands
The Netherlands
