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In Reply to: RE: Raspberry Pi 4 vs. 3B+ first impression posted by zacster on September 08, 2020 at 15:32:38
I recently did something similar. Using the RPi running Raspian without server sw enabled and using VLC the 3 and the 4 were both really good. However attempting to run headless, enabling the server sw, ruined the RPi 3 as a usb device. Noisy.The first OS (after Raspian) on the RPi 4 was Volumio and it sounded bad. Maybe worse than the RPi3 3 using Raspian with server sw enabled. I was told Volumio had issues with the RPi 4 and maybe USB and needed an update.
Truthfully I preferred the RP3 over the RP4 running with monitor and keyboard attached (and server sw disabled) but the whole point was to get the thing headless. The Moode SW with the RP4 did the trick - and it does it very well.
FWIW the RPi 3 USB running headless, or Volumio on the RPi 4 USB both sounded broken in comparison the Moode on the RPi4 or either PI USB running Rasbian with server sw disabled.
All of the above observations were repeated several times and only apply to USB operation.
The specific drivers that needed to be removed were vnc4server, tightvncserver and xrdp to improve Raspian running on the RPi3 without server.The RPi 4 using Moode software should sound very very good. Maybe your recent version Volumio is fixed and has corrected the issues I heard with the RPi3 or you are comparing the two bad apples I discovered. I can't tell from here.
Edits: 09/09/20 09/09/20 09/09/20Follow Ups:
I'll give MoOde a try, I haven't tried that yet. I use the RPi with Volumio as an endpoint for UPnP/DLNA, I don't have a NAS or use the radio features. My server is the iMac I'm currently typing on running Audirvana with Qobuz as my main music source. There is no wire to the RPi, just power in, usually from a battery but I screwed up the adapter purchase, and USB out to the Topping E30. I think that NOT having the wired ethernet in the Pi alleviates the issue on the 3 with the USB and Ethernet sharing the bus, and that is what the 4 fixed too, the shared bus.
This is all theoretical though, what matters is what combination sounds the best. From my experience though the power supply is what matters the most, and then it is the PS to the DAC more than to the Pi. The nice thing is that all of this is cheap to experiment with until you find the combo that sounds best to you!
From my experience though the power supply is what matters the most, and then it is the PS to the DAC more than to the Pi.
Amen!
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