ProtoDAC TDA1387 X8 project

[hifinet]

I have been comparing the stock ProtoDac i2s from the MoOde drop-down (with polarity inversion and Fixed-volume out) with the ProtoDac V2 setting from the CamillaDSP tab and prefer the former.

Mark, I note you use a Pi Zero W as your source and have seen on another forum you prefer it for lower CPU-activity hash.
I seem to recall the Zero W (not 2) is not 64bit so presumably is legacy and also not capable of running CamillaDSP so you're using the MoOde-rpi i2s setting?

I have added a Kali to the stack and at this early stage feel it detracts by losing air and dynamics and muddying vocals.
This may be that my Kali has the higher clocks and outputs to 384kHz ....and is not as suited to the ProtoDac as the version that topped out at 192kHz ?

Phase shift being better for the latter ?

I still have a LPS to try for the Kali...in other stacks I found the Pi was better supplied with it's own RPI wall-wart and isolated from the LPS supply to the Kali so will try both powering the full stack from the LPS and powering only the Kali and ProtoDac from the LPS and the Pi from an RPI supply.

cheers,
Bob

Yes, I am using polarity inversion under DSP options in Audio configuration with 0dB volume. No upsampling. I think the files sounds best at the original sample rate. My Kali is capable of 384kHz. In the past, I have used the trial version of PGGB and made high quality upsampled files to 384kHz with 115 million taps, and did not have a preference compared to the original file. Yes, you can hear the higher sample rate "air" in the noise with the 384kHz file, but the music sounds the same to me.