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  1. #1
    Join Date: Mar 2017

    Location: West Sūžsēaxe

    Posts: 2,015
    I'm Edward.

    Default Linear vs Switched mode PSU

    So I was chatting with Jez (Arkless) today about him possibly finishing of a part built linear PSU I have (using Paul Hynes regulators etc).

    Jez is happy to look at the PSU but did mention that I would not notice any difference. I have not tried to use a linear PSU on any audio product after using a switched mode PSU so I don't have a firm view on this. However I imagine some AoS members have so would appreciate hearing what differences (if any) were obvious.

    Of course I have looked at the interweb thingy and see opinions all over the place but with a slight tendency towards an improvement for well built linear PSUs. I certainly don't understand the electrical theory behind all this - but I do have well tuned ears.

    My particular application is for my HTPC and a Paul Pang USB card. Currently I'm using a Leicke switched PSU for the HTPC which, to me, sounds just fine. The Paul Pang card needs a separate 5v supply and I was hoping that the linear PSU I have would power that. My power amps, preamp and dac I have all have linear PSUs already.

    So grateful to hear of anyone's experience when switching from a switched PSU to a linear PSU (or the other way round) on an audio item?

    cheers
    Current: [P20] Roon/Tidal > Custom PC> Chevron Paradox NDF16 > Phast Pre > Neuro. 686 > Tannoy Berkley (RFC tweaks)


  2. #2
    Join Date: Apr 2016

    Location: Bishops Stortford

    Posts: 1,250
    I'm Chris.

    Default

    I think you will find that Jez also thinks there are no sonic differences between interconnects or mains cables.

  3. #3
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,173
    I'm Jez.

    Default

    Quote Originally Posted by bumpy View Post
    I think you will find that Jez also thinks there are no sonic differences between interconnects or mains cables.
    No I don't believe it I know it to be fact. Certainly in the case of mains cables. Small differences will sometimes (rarely) be heard with interconnects which have nothing to do with the interconnect itself, ie what make it is etc, but only to do with the capacitance and the way in which a particular source copes with this.
    Last edited by Arkless Electronics; 20-07-2017 at 12:47.
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  4. #4
    Join Date: Dec 2008

    Location: East Riding of Yorkshire these days

    Posts: 4,779
    I'm Shaun.

    Default

    Quote Originally Posted by Arkless Electronics View Post
    No I don't believe it I know it to be fact. Certainly in the case of mains cables. Small differences will sometimes (rarely) be heard with interconnects which have nothing to do with the interconnect itself, ie what make it is etc, but only to do with the capacitance and the way in which a particular source copes with this.
    LOL... so I guess just because you 'think' there is no difference between interconnects, there cannot possibly be a difference...? It cannot possibly be because your ears cannot hear a difference...??

  5. #5
    Join Date: Aug 2011

    Location: Coventry, England UK

    Posts: 534
    I'm Simon.

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    Quote Originally Posted by Haselsh1 View Post
    LOL... so I guess just because you 'think' there is no difference between interconnects, there cannot possibly be a difference...? It cannot possibly be because your ears cannot hear a difference...??
    Sure we've been over this before in various other threads. It's just an opinion (just like most posts are on a forum).

    I struggle to hear a difference if I'm honest, but then I could just not have good enough gear or my ears are shot I've only tried ''lower'' tier stuff, like Mark Grant, the Klotz/MS Audio cable, Van Damme with Rean plugs, around the £25-60 mark, nothing like hundreds of pounds stuff.

    Not sure I believe it myself either, and if there is a difference it is extremely slight but if others do then fair enough and if it works out then that is the main thing here for me. If a person is happy with something they've purchased and happy with the price/performance ratio, etc then fair play.

  6. #6
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,173
    I'm Jez.

    Default

    Quote Originally Posted by Haselsh1 View Post
    LOL... so I guess just because you 'think' there is no difference between interconnects, there cannot possibly be a difference...? It cannot possibly be because your ears cannot hear a difference...??
    I wish I had a tenner for every time I've visited a foo believing hi fi enthusiast and within seconds of the first track starting I've been able to say that the speakers are out of phase.... or a tweeter has blown altogether on one channel and there's nothing above 3KHz on that channel....
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  7. #7
    RothwellAudio Guest

    Default

    Quote Originally Posted by Arkless Electronics View Post
    I wish I had a tenner for every time I've visited a foo believing hi fi enthusiast and within seconds of the first track starting I've been able to say that the speakers are out of phase.... or a tweeter has blown altogether on one channel and there's nothing above 3KHz on that channel....
    I remember visiting one chap who demonstrated the difference in sound when he placed something underneath his CD player. Somehow he seemed oblivious to the fact that the system sounded absolutely horrible either with or without the thing under his CD player.

  8. #8
    Join Date: Oct 2012

    Location: NE England

    Posts: 4,173
    I'm Jez.

    Default

    I was asked the other day to outline what was put by the poster as "The world of hi fi according to Jez"..... a rather pejorative description I think as I would personally put it more as "the true world of hi fi". Much to my surprise Marco encouraged it!

    So, on the understanding that I will put things in my own phraseology, which apparently some find "abrasive", others refreshingly honest, I will start such a thread and make switch mode V linear supplies the first topic.

    Marco, I hope you are reading this! If I am "not allowed" to, for example, INSIST that something which is impossible, and would break the laws of physics, remains impossible even if several "golden eared" types claim to hear it, and that therefore the only viable explanation is a lively imagination, then I will not start the thread. I would see it as a "lecture", "teach in" or "master class" rather than a debate and, to use a medical analogy, if I were a doctor giving a lecture on health and the environment, I would not be willing to begin it on the understanding that "Oh, Dr Arkless, a quick word, some of our audience believe that people get sick due to evil leprechauns cursing the grass the cows eat and may not take kindly to being told that is impossible...could you skirt around that bit, maybe say it's open to various interpretations?"
    Arkless Electronics-Engineered to be better. Tel. 01670 530674 (after 1pm)

    Modded Thorens TD150, Audio Technica AT-1005 MkII, Technics EPC-300MC, Arkless Hybrid MC phono stage, Arkless passive pre, Arkless 50WPC Class A SS power amp, (or) Arkless modded Leak Stereo 20, Modded Kef Reference 105/3's
    ReVox PR99, Studer B62, Ferrograph Series 7, Tandberg TCD440, Hitachi FT-5500MkI, also FT-5500MkII
    Digital: Yamaha CDR-HD1500 (Digital Swiss army knife-CD recorder, player, hard drive, DAC and ADC in one), PC files via 24/96 sound card and SPDIF, modded Philips CD850, modded Philips CD104, modded DPA Little Bit DAC. Sennheiser HD580 cans with Arkless Headphone amp.
    Cables- free interconnects that come with CD players, mains leads from B&Q, dead kettles etc, extension leads from Tesco

  9. #9
    Join Date: Dec 2008

    Location: East Riding of Yorkshire these days

    Posts: 4,779
    I'm Shaun.

    Default

    Quote Originally Posted by Arkless Electronics View Post
    I wish I had a tenner for every time I've visited a foo believing hi fi enthusiast and within seconds of the first track starting I've been able to say that the speakers are out of phase.... or a tweeter has blown altogether on one channel and there's nothing above 3KHz on that channel....
    And what about the other times that the person you are with is not a fucking idiot and none of your suggestions apply...?

  10. #10
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by Edwardlon View Post
    Jez is happy to look at the PSU but did mention that I would not notice any difference.
    Sounds like he's snowed under with work ....
    Chris



    Common sense isn't anymore!

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