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  1. #1
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    Best easy HIFI alternative to SBT +EDO? With widely compatible asyncUSB 192k/24b out?

    Hi there everybody!

    I have a SBT with EDO, but it does not work with my Soekris 1101 USB DAC. I tried EDO with all available experimental Kernels and of course an additional power supply added to the USB (which works on the pc), however, no sound comes out of SBT.

    My conclusion: SBT (which I love) will not work.

    So, I am searching for a squeezebox transport that will work. Basically, everything based on a recent Linux distribution shoult be (according to Soekris) natively compatible to the Soekris 1101 USB DAC.

    My priorities:
    - Easy and quick and thumb-adapted assembly and configuration in case of DIY-projects
    - Audiophile streaming quality with asynchronous USB output capable of 192khz/24bit
    - if possible, no recurring license fees (like it is the case for "Raspberry Pi 7'' Touch Display Bundle with HiFiBerry")
    - Display is optional, as long as configuration remains easy anyway

    That HIFIBerry with display looks fine. "This bundle is a Max2Play solution simulating the previously available Logitech Squeezebox Touch Player." is written on the homepage. However, there is a license that has to be renewed periodically and I wonder, if I reamin with a brick if one day this company is not there anymore to renew my license. Therefore I wonder whether there are other good alternatives???

    It is very well possible that this has been discussed in other threads. I found some, however, everything I found did not seem really easy to implement without spending days in experimenting and troubleshooting...
    Last edited by diego; 2019-03-20 at 08:26.

  2. #2
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    You can build your own version of

    Raspberry Pi 7'' Touch Display Bundle
    http://archimago.blogspot.com/2017/0...raspberry.html

    The licence you refer to should not be required for any items in the build, it's for stuff developed by Max2Play.


    Here is a suggestion; first check if you can use your dac wiith a linux OS

    Download and burn to a usb stick (min 8gb) this image

    https://www.raspberrypi.org/download...ry-pi-desktop/

    It's a live usb image which is based on Debian.

    Run it on a computer, (with persistance) connect the dac to your computer and see if it works.

    You may need to install some player software (Squeezelite would be good, if you have LMS running somewhere, or even LMS and Squeezelite together).

    This cost nothing and only uses time, plus you will learn stuff.

    Or borrow a rpi3B and install piCorePlayer.

    ronnie

  3. #3
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    You can try NanoPi NEO2. Here is my config : https://github.com/bz31/NanoPi_NEO-NEO2_Buildroot

  4. #4
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    PiCorePlayer: USB out with loud noise...

    Hi, thanks for your suggestions!

    Well, my question was not really whether there is a juste some USB transport, but which one is good or better than a SBT with EDO. In "audiophile" terms - that's why I put it into the Audiophiles-Forum.

    Anyway, I got myself a Raspberry Pi 3 Model B+ - Kit and installed piCorePlayer.

    So... basically, it works. I gut up to 192khz-output to my DAC.

    HOWEVER, connecting the DAC to the RPi USB port produces LOUD and clearly audible, disturbing white NOISE out over my speakers. I believe this must be some analogue interference as it is constantly audible even if no music is playing.

    So... it's a pity HifiBerry is not available with a hifi-capable USB output...

    Would there be another head you are aware of that gives a better USB connection, if possible galvanically isolated?

    Or any other suggestions???

  5. #5
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    I don't know why you get the noise.

    I have connected the rpi usb to several different dac without any noise.

    I never hot plug the usb connection, always connect without any power, then power the dac first, then the pi.

    What is your set-up

    can you try another dac?

  6. #6
    Member MikeSlim's Avatar
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    Hello,
    this hat from allo is isolated and sounds fantastic:

    https://allo.com/sparky/usbridge.html
    Logitech Media Server Version: 7.9.0 - 161.1091, 1x Boom, 1x Radio, 2x Max2Play (Raspberry Pi 2 u. Odroid C1+), iPeng 9.1, Orange Squeeze 2.1.2, Synology DS 116, DSL-Easybox 802

  7. #7
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    Quote Originally Posted by Man in a van View Post
    I don't know why you get the noise.

    I have connected the rpi usb to several different dac without any noise.

    I never hot plug the usb connection, always connect without any power, then power the dac first, then the pi.

    What is your set-up

    can you try another dac?

    Thanks for that.

    I got a Soekris DAC1101 that goes (directly) into two monoblock Crimson 75W (continuous) power amps that feed two Rehdeko RK125 speakers with 102db / 1W / 1m efficiency.

    The power Amps and high efficiency speakers make the system probably particularly sensible also for noise. And given that the soekris DAC has only a digital volume control, so I assume that it attentuates the volume of what gets digitally into it, however, analogue noise seems to get through the DAC and fully amplified, thus its really loud.

    The thing is, when the RPi is shut off, this noise is not audible and starts sounding when the RPi is powered on. Which means, it comes from there.

    I will get myself a passive analogue attentuator (simply a good poti in a box aka a "passive preamp"), which will hopefully reduce the issue, as the DAC will then play at full volume and not alter the digital information at all. Anyway it should sound better.

    However, this setup allows me for now to detect this noise issue and I hope to eliminate it, too.

  8. #8
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    Quote Originally Posted by MikeSlim View Post
    Hello,
    this hat from allo is isolated and sounds fantastic:

    https://allo.com/sparky/usbridge.html
    Thanks Mike!

    I had indeed come over this before. However, this runs on another board than RPi, called "Sparky", unknown to me. I guess that PiCorePayer won't run on that one...? How would you suggest to convert it into a convenient and hifi Squeezebox-Client? I'm unfortunately to little into Linux to be sure I will get the clue...

  9. #9
    Member MikeSlim's Avatar
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    Sorry, it's only for the Allo Sparky Board.
    In order to get Allo Sparky and Usbridge running, similar steps as with the Rpi are necessary.

    Download Dietpi as operating system, install it on SD card and make some settings as described in the link.

    https://dietpi.com/#noAction
    https://dietpi.com/phpbb/viewtopic.php?f=8&t=9#p9

    By the way, I already had several Rpi, but never white noise.
    Maybe something seems to be broken or incompatible.

    Greetings

    Mike
    Logitech Media Server Version: 7.9.0 - 161.1091, 1x Boom, 1x Radio, 2x Max2Play (Raspberry Pi 2 u. Odroid C1+), iPeng 9.1, Orange Squeeze 2.1.2, Synology DS 116, DSL-Easybox 802

  10. #10
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    @diego

    Some ideas:

    What you could try, is a different OS in the pi, either MoOde Audio or Volumio.

    Or install Raspbian Lite with Squeezelite (and LMS, if needed).

    Is the dac a pre-built model or did you put it together yourself?

    ronnie


    Nice system by the way (it's a bit old skool, in a good way ).

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