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Thread: NAS Super-Low Noise Linear Power Supply

  1. #141
    Join Date: Mar 2017

    Location: NE Leics

    Posts: 85
    I'm Nigel.

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    Quote Originally Posted by Marco View Post
    I'd been talking to Duncan (Tubehunter) about building me a dedicated linear PSU for my Seagate (5TB) NAS drives (suppling music files to the RPi), to replace the stock switch-mode units, which like all items of that nature, chuck a lot of noise into the mains.

    My thinking was that as well as reducing that pollution, which could have been having an adverse knock-on effect on my main system, ultimately receiving its power from the same mains supply, it may also improve the sonic performance of the RPi, so I bought all the necessary bits, gave them to Duncan, and this is what he came up with:



















    Total expenditure on parts: £165.00

    Links to main components...

    Power module for PSU: http://www.ebay.co.uk/itm/1218280144...%3AMEBIDX%3AIT

    Casing: http://www.ebay.co.uk/itm/1421515382...%3AMEBIDX%3AIT

    Transformer Toroidal 80VA 2x15V o/p: http://uk.rs-online.com/web/p/toroid...32333836373326

    FN9260 IEC950 2 fused inlet filter,4A: http://uk.rs-online.com/web/p/iec-fi...38383936323426

    Other sundry items sourced from Maplins.

    Could it be the best linear PSU out there, with which to power a NAS hard-drive? I think so... It should form a formidable partnership with the Paul Hynes SR3DR-05 linear PSU, powering the RPi. Can't wait to try it out!

    Marco.
    We have had long and painful discussions over this, not revisiting them here. You gave a price for the parts. I don't know anything about Duncan (tubehunter) but can obviously look him up to understand how he works...

    My questions are
    (1) how much it would cost anyone who wanted to follow in your footsteps? Total cost to you for labour and parts.

    And (2) is Duncan up for similar commissions or would anyone else who wanted to try "it" have to find another route to do so?

    Thanks.

  2. #142
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

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    Hi Nigel,

    You obviously have the price for parts, but if you'd like to ask Duncan to build you a PSU, you'll need to get a quote from him for labour, as I'm not at liberty to state what I paid. Pop him a PM and I'm sure he'll respond soon.

    Your other question will also no doubt be answered in the same PM. Good luck

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  3. #143
    Join Date: Mar 2017

    Location: NE Leics

    Posts: 85
    I'm Nigel.

    Default

    Quote Originally Posted by Marco View Post
    Hi Nigel,

    You obviously have the price for parts, but if you'd like to ask Duncan to build you a PSU, you'll need to get a quote from him for labour, as I'm not at liberty to state what I paid. Pop him a PM and I'm sure he'll respond soon.

    Your other question will also no doubt be answered in the same PM. Good luck

    Marco.
    Will do. Thanks. I was hoping to be able to share with others who might want to try "it" what "it" might cost, but I respect the commercial confidentiality.

  4. #144
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    It's simply a matter of whether or not Duncan wants to build more PSUs, as he doesn't do this sort of thing for a living, and if he's willing to produce more, how much he wants to charge, which is why it's best to speak with him directly

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  5. #145
    Join Date: Mar 2017

    Location: NE Leics

    Posts: 85
    I'm Nigel.

    Default

    I messaged him this afternoon.

  6. #146
    Join Date: Mar 2017

    Location: NE Leics

    Posts: 85
    I'm Nigel.

    Default

    Duncan will not be building any more PSUs.

    He has suggested I will get no benefit if my NAS is on a separate mains like his is.

    I will leave this I think.

  7. #147
    Join Date: Apr 2008

    Location: Warrington

    Posts: 3,451
    I'm Neil.

    Default

    Quote Originally Posted by TheFlash View Post
    Duncan will not be building any more PSUs.

    He has suggested I will get no benefit if my NAS is on a separate mains like his is.

    I will leave this I think.
    Another option is to get your noisy gubbins like router and NAS onto its own Tacima filtered mains block, which is what I do.
    Mana Acoustics Racks / Bright Star IsoNodes Decoupling >> Allo DigiOne Player >> Pedja Rogic's Audial Model S DAC + Pioneer PL-71 turntable / Vista Audio phono-1 mk II / Denon PCL-5 headshell / Reson Reca >> LFD DLS >> LFD PA2M (SE) >> Royd RR3s.

  8. #148
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by TheFlash View Post
    Duncan will not be building any more PSUs.

    He has suggested I will get no benefit if my NAS is on a separate mains like his is.

    I will leave this I think.
    Actually, that's not quite what he said, in the sense that the above represents his conclusive statement on the matter. Not at all. You've simply worded it that way to appease your 'scientific sensibilities', and not suffer the discomfort of having your own (rather blinkered) conclusions called into question.

    Duncan's a good friend of mine, so I know him very well. He hasn't had the chance yet to analyse the sonic effect of the linear PSU in my system, so he'll no doubt reserve final judgement until then on its efficacy (or otherwise) in respect of the claims I've made here, when he listens for himself, which no doubt will happen soon.

    Happy days!

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


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