In Reply to: RPi5 - the first month posted by soundchekk on December 25, 2023 at 23:50:49:
This was the solution adopted after I figured the bisikek transformers were wildly overpriced.
Sowter btw has been going for decades making transformers that just work in mostly mumetal.
All the more exotic hype for nanocrystalline stuff = more hype for imaginary effects, while in the meantime people like us are CREATING the recordings you are listening to....microphones, DPA, Neumann, Gefell etc etc through a studio mixer and ADCs full of opamps.
The only worry I have in my CM4 - on a high quality swiss made board btw is RFI.
RFI from the wifi, and RFI from the 4G - LTE M.2 modem.
Both sources are switched to external antennae, something they missed on the RPI5, and another stupid thing...
The CM4 runs off car /24V or battery power because it's able to be fed with 9-28V DC.
The waveshare CM4 (power thru 5V USB-C) and Rpi5 systems can't do that - so maybe you're just listening to PSU noise?
(I happen to know that cos I have 2 waveshare boards plus the official CM4 9-28V one and a retroflag 2 GPI with Kodi + headphone output which has an onboard 4hr lithium battery and a CM4 inside.
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Follow Ups
- RE: RPi5 - the first month - ivan_terrible 01:27:20 12/27/23 (2)
- RE: RPi5 - the first month - AbeCollins 14:48:12 12/28/23 (1)
- RE: RPi5 - the first month - ivan_terrible 04:34:00 12/29/23 (0)