ProtoDAC TDA1387 X8 project

[wolf7250]

With the FifoPi MA and ProtoDAC, the PurePi is not needed, since the 3.3V supply will not be needed. You just need the 5V component of PurePi, which (according to the manual) is the ConditionerPi. When you add the J4 jumpers, everything will run on 5V. Read the posts by @michaelagiles who has personal experience with the MA.

I think the UcConditioner Mk II 5V would be a better choice, but that should be up for discussion. Figuring out these Ian components and functionality from the manuals is a difficult task.  

I am currently using the 5V supply of PurePi with my 5V stack (Zero W/Allo Kali/ProtoDAC). I personally like the sound of the ultracapacitor supply very much. The best deep bass I have heard from my system. Very localized and accurate bass. The supply is very stiff, very low noise, accurate with a lot of detail. One friend does not like the sound of ultracapacitor supplies, because the sound has a "lack of body and pleasant dynamic bloom". "Unnaturally stiff sounding."

The Zero W works well with a local SSD USB drive. It did not work very well when connected to my large music library with -60dB WiFi signal and frequent library additions, which resulted in very long library updates.

@hifinet thanks  !

Agreed that figuring out these Ian components and functionality is tricky. But yes, it would seem that the UcConditioner Mk II 5V would be a good choice.

Thanks for your opinion on the Zero W. I think I would be interested mostly in AirPlay and/or Spotify Connect. So at this stage a large music library wouldn't be an issue.

I'm trying to summarise/evaluate my options. Would you say the best options would be:

• Pi Zero W, FifoPi MA, ProtoDAC, and UcConditioner Mk II 5V or
  
• Pi (any version), FifoPi Q7, ProtoDAC, and PurePi II with 5V going separately to Q7 and ProtoDAC