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  1. #1
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    Raspberry Pi 4 and DAC on daughterboard.

    Hello

    I am currently using a Raspberry Pi 3B+ with a Hifiberry DAC+ Pro card. This equipment hosts an LMS server, a Squeezelite player and Kodi (FullHD only). All this runs very well on Raspbian Buster, with hard drives directly connected via USB.

    I plan to use a Raspberry 4 but I fear temperature concerns when used with an additional card. So I have several questions for you.

    Are you using a GPIO sound card with a Raspberry 4? If yes, are you also using your Raspberry Pi to run somewhat heavy tools (4K video, DSD audio)? With temperature concerns or not? With which case?

    I just found: https://support.hifiberry.com/hc/en-...r-HiFiBerryDAC

    Have you had to replace your sound card with an external USB DAC?

    For those who already use an external USB DAC, how does Squeezelite behave? When the DAC is only switched on when listening to music, while the Raspberry is still on, should you stop and restart Squeezelite? Or can Squeezelite wait for the return of the DAC? Do you have any configuration advice to give me?

    I know these are a lot of questions!
    There is no urgency to answer me. For now, I'm just thinking about the future of my installation.

    Thanks in advance.

  2. #2
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    Currently I'm using a rpi4b (1gb) as a Squeezelite player into a Topping DX3 Pro Dac/pre-amp.

    Running Raspbian Desktop (the lighter version) with a librespot built Spotify-connect client as well as Squeezelite.

    Using "-C 5" in the Squeezelite settings

    https://www.max2play.com/en/wiki/com...r-squeezelite/

    The rpi4b now runs a bit cooler, and if you put it on its side (gpio pins on the bottom) cooler still.

    ronnie

  3. #3
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    I use a Raspberry Pi4 with piCorePlayer v6 into a HiFiMe Sabre DAC (24/96) which is powered from the USB port. Its not a great DAC but it sounds very good. If I was upgrading I'd run an Audioquest Dragonfly Red - again powered from USB - which sounds very good connected to my iPhone so I'd expect it to be excellent with a Pi.
    VB2.4 storage QNAP TS419p (NFS)
    Living Room - Joggler & SB3 -> Onkyo TS606 -> Celestion F20s
    Office - Pi3+Sreen -> Sony TAFE320 -> Celestion F10s / Pi2+DAC & SB3 -> Onkyo CRN755 -> Wharfedale Modus Cubes
    Dining Room -> SB Boom
    Kitchen -> UE Radio (upgraded to SB Radio)
    Bedroom (Bedside) - Pi2+DAC ->ToppingTP21 ->AKG Headphones
    Bedroom (TV) - SB Touch ->Sherwood AVR ->Mordaunt Short M10s
    Everything controlled by iPeng

  4. #4
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    Thank you both for your answers.

    I see that both of you have chosen a USB DAC. I have the impression that we must forget the DAC on daughtercard with a Raspberry Pi 4.

  5. #5
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    Quote Originally Posted by Franck@ View Post
    Thank you both for your answers.

    I see that both of you have chosen a USB DAC. I have the impression that we must forget the DAC on daughtercard with a Raspberry Pi 4.


    Well, not so I think. It's just a case of horses for courses

    ronnie

  6. #6
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    Quote Originally Posted by Man in a van View Post
    Well, not so I think. It's just a case of horses for courses

    ronnie
    Probably harder to find a nice temperature reducing case with daughter boards fitted.

    Sent from my Pixel 3a using Tapatalk

  7. #7
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    I use the Pi 4 with an IQ audio DAC+ HAT (daughter board).

    I find the DAC+ to have a very high specification and it's quite a bit lower in price than some of the USB DACs.

    It's easy to integrate into piCore as it already has a dt_overlay which is selected by the piCore GUI.

    The biggest issue with the DAC+ (or most other daughter boards) is that their are no official Pi 4 cases that I know of which accommodate HATs. In the case of IQ Audio they say it is due to heat issues in the Pi4 which are not easy to mitigate in a case with a DAC attached. I have not yet seen a case for any type of DAC Hat for the pi 4.

    However piCore has addressed the issue by incorporating the latest kernel which manages the heat generation very well.

    I have made an open sided case from old IQ Audio case which has open sides. (There are no official sides for any DACS and the open sides also allow for heat dissipation).

    The piCore/4B combination runs about 4 degrees C hotter than the 3B equivalent

    I have four DAC+'s in my system, two pi 3B with official cases and two pi 4B with these modified cases.

    Picture attached.

    Edit: I use the 4B's as server/Players and the 3B's as players only (No LMS).

    Edit 2: One of my 4B server/Players has HDMI 1920 x 1080 HDMI on Jivelite. The other 4B Server/Player can do DXD playback at 17MBps second (I have a test download). I suspect the first one could do it too but the home network isn't good enough to run at that rate.
    Attached Images Attached Images  
    Last edited by ian_heys; 2020-02-27 at 02:46.
    Music Store & VPN Server: Synology DS215J NAS
    Home Server/Study Player:
    LMS 8.0.0 on Pi 4 pCp 6.0.0 Server/IQ Audio DAC+
    Refurbished 1962 RCA Stereo Console Server/Player LMS 8.0.0 on Pi 4B pCp 6.0.0 Server/IQ Audio DAC+
    Headphone Players: x2: pCp 6.0.0 on Pi 3B /IQ Audio DAC+
    Streamer/Player pCp 6.0.0 on Pi 3B/IQ Audio Codec+
    Homeplug/LAN Players: x2: Squeezelite on Windows 10 PC.
    VPN Mobile & Car Player: Material/SqueezePlayer on Android Phone

  8. #8
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    rpi4b (4gb) with pCP player and server.

    Spdif board

    No case

    Streaming Qobuz

    Name:  pcptemp.jpg
Views: 220
Size:  168.8 KB

    ronnie

    it does not even start to throttle until 80C (and then only a little)

  9. #9
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    Ronnie, just gave mine a try, it's running at 44 Degrees with the DAC+ on Qobuz download with my open sided "case".

    Tried it on both the Qobuz app and the my music integration in LMS 8.0.0.

    I have the IQ Audio Digi + which I'm not using but I don't have any spare pi's to test on.

    I'll try my other server/player see what that reports.

    Edit: Other one's running at 53 degrees but it is running jivelite/HDMI too.

    Edit 2: Just realised it could be the RAM that accounts for cooler running. Mine are 4GB Ram boards.
    Last edited by ian_heys; 2020-02-27 at 03:36.
    Music Store & VPN Server: Synology DS215J NAS
    Home Server/Study Player:
    LMS 8.0.0 on Pi 4 pCp 6.0.0 Server/IQ Audio DAC+
    Refurbished 1962 RCA Stereo Console Server/Player LMS 8.0.0 on Pi 4B pCp 6.0.0 Server/IQ Audio DAC+
    Headphone Players: x2: pCp 6.0.0 on Pi 3B /IQ Audio DAC+
    Streamer/Player pCp 6.0.0 on Pi 3B/IQ Audio Codec+
    Homeplug/LAN Players: x2: Squeezelite on Windows 10 PC.
    VPN Mobile & Car Player: Material/SqueezePlayer on Android Phone

  10. #10
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    ater just over one hour

    Name:  pcptemp2.jpg
Views: 207
Size:  168.0 KB

    Highest recorded has been 58C

    i have just propped it up on its side and temp is averaging 53C (ugly but )

    Edi:

    seems to have settled now (I think the rpi3B+ runs at these sort of temps)

    Name:  pcptemp3.jpg
Views: 203
Size:  108.2 KB
    Last edited by Man in a van; 2020-02-27 at 04:16.

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