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DAC2 HD with DSP

Hi

I have just installed the DSP on the DAC2 HD i got some months back. Using the available problems i encountered some problems which I want to understand before starting to make my customized profiles. For

  • DAC+ DSP Universal 48 kHz - NO sound except high frequency tone

  • DAC+ DSP Universal (96kHz) and DSP add-on - high frequency distortion especially when source is 24 bit PCM but also audible using Spotify Connect

I have not heard the (digital?) distortion before, when using the DAC2 HD alone neither do I have it playing music from the same sources and on the same equipment using a HifiBerry DAC+ Pro. In both cases I am running the HifiBerry on RPi 3b. 

Any proposals what to test?

Regards

 

 

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