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Thread: Power Supply options for RPI

  1. #1
    Join Date: Nov 2012

    Location: Barry, Vale of Glamorgan

    Posts: 27
    I'm Richard.

    Default Power Supply options for RPI

    I've just put together a Raspberry pi streamer coupled to an Audiophonics v2 DAC. What's the consensus on power supplies?

    At the moment I'm using the standard Pi supply, but not sure whether to go for the Audiophonics low noise LPS or the ifi ipower.

    Any thoughts?

  2. #2
    Join Date: Sep 2009

    Location: Derbyshire

    Posts: 7,061
    I'm Josie.

    Default

    I use the SBooster linear PSU with mine and it's smashing so I'd recommend one of those.
    Preamplifier: Croft Epoch Elite - Dual external PSU & Upgrades
    Amplifier: Tube Distinctions Copper Amp No. 5 using KT150's
    Digital: Raspberry Pi & ALLO Piano DAC & KALI - IQAudio DAC with SBooster Linear BOBW PSU & Trio DP700 CDP
    Turntable: Thorens TD124 MkII - Schopper refurbished
    Tonearm: SME 3009 S2 None Improved - Audio Origami modified
    Cartridge: Ortofon SPU GT
    Speakers: 15" Tannoy Monitor Golds in Lockwood Majors with Tannoyista Spec 3 crossovers
    Cables/Mains: Mark Grant Black Series mains cables & 6-Way power bar
    Cables/IC's: Mark Grant HDX1 Pure Copper + Custom made Silver/Gold interconnects
    Mains Other: Tube Distinctions/Mark Grant 'The Power Works' Digital noise mains power filter TD2414-MG - Nick Gorham DC Blocker unit constructed by Mark Grant

  3. #3
    Join Date: Nov 2012

    Location: Barry, Vale of Glamorgan

    Posts: 27
    I'm Richard.

    Default

    Very nice, more than I would like to pay though.

  4. #4
    Join Date: Aug 2011

    Location: Coventry, England UK

    Posts: 354
    I'm Simon.

    Default

    What about a HDPlex LPS? They're not cheap but for the price a real value for money device. It will power multiple items too so could be a worthwhile investment. I currently use mine to power a Rpi2, my phono stage and my USB hub connected to the Rpi2 (which powers 2 external drives). I've still got connections to spare also!

    http://www.hd-plex.com/HDPLEX-Fanles...CE-device.html

  5. #5
    Join Date: Feb 2017

    Location: Manchester, UK

    Posts: 111
    I'm Luke.

    Default

    I'm also considering the ipower. Probably better than a standard switching supply through the micro usb port on the Pi, but due to the Pi's poor (noisy) power regulator the real advantage comes from powering the DAC through the appropriate GPIO pins, which backpowers the Pi (if using an onboard DAC, obviously).

    While this bypasses the noisy regulator, it also bypasses a protective fuse, so there might be some risk, apparently, depending on how well your supply is regulated.

    I'm still trying to work out how to attach the ipower in this way without soldering (need to work out whether appropriate adapters exist!), and whether the ipower is good enough to do this safely, though I'm pretty sure it will be.

  6. #6
    Join Date: Sep 2009

    Location: Derbyshire

    Posts: 7,061
    I'm Josie.

    Default

    I'd be interested in trying a battery option. It's been on the cards for ages.
    Preamplifier: Croft Epoch Elite - Dual external PSU & Upgrades
    Amplifier: Tube Distinctions Copper Amp No. 5 using KT150's
    Digital: Raspberry Pi & ALLO Piano DAC & KALI - IQAudio DAC with SBooster Linear BOBW PSU & Trio DP700 CDP
    Turntable: Thorens TD124 MkII - Schopper refurbished
    Tonearm: SME 3009 S2 None Improved - Audio Origami modified
    Cartridge: Ortofon SPU GT
    Speakers: 15" Tannoy Monitor Golds in Lockwood Majors with Tannoyista Spec 3 crossovers
    Cables/Mains: Mark Grant Black Series mains cables & 6-Way power bar
    Cables/IC's: Mark Grant HDX1 Pure Copper + Custom made Silver/Gold interconnects
    Mains Other: Tube Distinctions/Mark Grant 'The Power Works' Digital noise mains power filter TD2414-MG - Nick Gorham DC Blocker unit constructed by Mark Grant

  7. #7
    Join Date: Nov 2012

    Location: Barry, Vale of Glamorgan

    Posts: 27
    I'm Richard.

    Default

    Quite lucky with the Audiophonics dac, it's got a 5v input I can use instead of the micro usb on the pi.

  8. #8
    Join Date: Feb 2017

    Location: Manchester, UK

    Posts: 111
    I'm Luke.

    Default

    Such a simple thing to do, I wish Allo had done this with the Boss! Still, will hopefully crack it...

  9. #9
    Join Date: Dec 2015

    Location: vancouver

    Posts: 642
    I'm danilo.

    Default

    Interesting I have an unused Pi and anb Audiophonics gizmo. Also A drawer full of Nicad batteries.
    Hmmm :-) One day... but TBH it's faded from interest.
    Nicads have been tested for clean power output... in the past, when battery power was a current topic
    Results were hampered by the fact that Nicads output was Sooo Clean that it was below the Test Lab Gear thresholds.
    Not quite so clean an output for most /all other batteries though.
    Decide soonish ..as Nicads are quickly dissapeariing

  10. #10
    Join Date: Nov 2013

    Location: Powys

    Posts: 842
    I'm David.

    Default

    My ifi power supply has suddenly become noticeably noisy, the standard pi power supply is now actually quieter. Just ordered one of these to try

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