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Thread: Help with q-dac

  1. #1
    Join Date: Sep 2013

    Location: N Ireland

    Posts: 71
    I'm Wesley.

    Default Help with q-dac

    My Q-dac has decided to no longer power up. Is this a case of new power supply needed or is there another possible explanation before splashing the cash? (It's not the fuse in the plug!)

    Any suggestions welcomed..alternatively anyone wish to buy a q-dac which does not power up?????

  2. #2
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,663
    I'm Gary.

    Default

    Try a cheapo power supply, can get voltage and current printed on your old one (probably)...See if its the supply.

    Does the Q-Dac have an internal fuse, aside from the one in the plug I mean.
    AC POWER
    Hardwired 10kVA balanced mains powering entire system
    AMPS
    Meridian 557 power Amp (Modded) / PS Audio BHK Preamp (Modded)
    SPEAKERS
    Wharfedale Evo 4.4
    DAC
    PS Audio Directstream (Modded)
    TURNTABLE
    Pro-Ject X8 balanced output via XLR / Ortofon Quintet Blue cartridge
    PHONOSTAGE
    Pro-Ject DS3 B balanced Input (TT and Phonostage powered by Pro-Ject Power box RS2 linear psu)
    DIGITAL
    OPPO 203 (Modded: Linear PSU, i2s output to Dac) - Roon Endpoint, HDMI input used for all things Streaming/ PS5 /AppleTV ... also good for movies apparently?
    MUSIC PLAYBACK
    Tweaked AP-Linux based Roon Server into Oppo 203 as Roon endpoint
    Ipad Roon Remote.
    Apple Music/ YouTube via AppleTV, fed to Dac via Oppo HDMI input/i2s output to Dac.
    SPEAKER CABLES
    Biwired: Duelund DCA10GA (Bass) Duelund DCA16GA (mid & treble) Duelund 12DCA used as jumpers (On
    "Blackcat Cable" Chris Sommivigo's advice - yup, even with biwire it sounds better - and it does)
    INTERCONNECTS
    All Balanced: Ghost+ recording studio XLR cables

  3. #3
    Join Date: Sep 2013

    Location: N Ireland

    Posts: 71
    I'm Wesley.

    Default

    Thanks for reply


    not sure if it is possible to get cheap power supply with appropriate fitting...offhand unsure about fuse question! Not an easy dac to get inside the amateur like me!

  4. #4
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 9,663
    I'm Gary.

    Default

    Lemme have a rummage about, see what info I can find.

    No internal fuse, so can score that one off.
    Sometimes you get a fuse thats connected to the kettle lead socket on the back of the box, but your Q-Dac doesnt have one of those, so its not that either.

    My moneys on either the fuse in the plug (which you checked) or the power supply itself.
    Your Q-Dac power supply’s rating is 13.8 volts, 0.5 amps.

    This one would work.
    http://www.audioaffair.co.uk/audiola...t-power-supply
    Last edited by Gazjam; 25-03-2018 at 10:58.
    AC POWER
    Hardwired 10kVA balanced mains powering entire system
    AMPS
    Meridian 557 power Amp (Modded) / PS Audio BHK Preamp (Modded)
    SPEAKERS
    Wharfedale Evo 4.4
    DAC
    PS Audio Directstream (Modded)
    TURNTABLE
    Pro-Ject X8 balanced output via XLR / Ortofon Quintet Blue cartridge
    PHONOSTAGE
    Pro-Ject DS3 B balanced Input (TT and Phonostage powered by Pro-Ject Power box RS2 linear psu)
    DIGITAL
    OPPO 203 (Modded: Linear PSU, i2s output to Dac) - Roon Endpoint, HDMI input used for all things Streaming/ PS5 /AppleTV ... also good for movies apparently?
    MUSIC PLAYBACK
    Tweaked AP-Linux based Roon Server into Oppo 203 as Roon endpoint
    Ipad Roon Remote.
    Apple Music/ YouTube via AppleTV, fed to Dac via Oppo HDMI input/i2s output to Dac.
    SPEAKER CABLES
    Biwired: Duelund DCA10GA (Bass) Duelund DCA16GA (mid & treble) Duelund 12DCA used as jumpers (On
    "Blackcat Cable" Chris Sommivigo's advice - yup, even with biwire it sounds better - and it does)
    INTERCONNECTS
    All Balanced: Ghost+ recording studio XLR cables

  5. #5
    Join Date: Sep 2013

    Location: N Ireland

    Posts: 71
    I'm Wesley.

    Default

    Thank you..very much appreciated

  6. #6
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by bossjw View Post
    Not an easy dac to get inside the amateur like me!
    All the images I can find show Torx screws.
    Chris



    Common sense isn't anymore!

  7. #7
    Join Date: Sep 2013

    Location: N Ireland

    Posts: 71
    I'm Wesley.

    Default

    Very limited tool box!

  8. #8
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    https://www.screwfix.com/p/magnusson...set-8pcs/2724v

    There are branches of Screwfix in Northern Ireland.
    Chris



    Common sense isn't anymore!

  9. #9
    Join Date: Sep 2013

    Location: N Ireland

    Posts: 71
    I'm Wesley.

    Default

    have tried six different sizes of screw driver so far..guess im just not well enough equipped!

  10. #10
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

    Default

    Quote Originally Posted by bossjw View Post
    have tried six different sizes of screw driver so far..guess im just not well enough equipped!
    Torx
    Chris



    Common sense isn't anymore!

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