![]() The filter consists of an inductor two ceramic capacitors, a resistor of 22 Ohm and two capacitors of 4700 uF/10V (Conrad art.number 422027). So adding a passive filter before the voltage regulator assures that the noise from the Raspberry doesn't reach the DAC.Īdding this filter improved the audio quality a lot! I cannot tell the difference with the high-end DAC anymore!įirst you have to remove R14 (0 Ohm) SMD resistor. I think the reason for this is the noisy power supply of the Raspberry Pi.Īlthough the board has a buit-in voltage regulator, this does not work well for high frequency noise that comes from the power supply. Unfortunately, the difference was rather big: the stereo image was not very detailed and it sounded a bit dull. External USB CD/DVD player with own power supplyĪfter the modification (see below), it sounds fabulous!Īt first, I compared the HifiBerry DAC+ Pro against my other media player with a high-end DAC ("B-DAC", 1200 euro).To improve the audio quality dramatically: add some filtering in the power supply (resistor + capacitor) see pictures below.Cabinet suitable for Raspberry Pi and HifiBerry DAC.HifiBerry DAC+ PRO card of HifiBerry DAC+ DSP.For programming you need a USB (micro) card reader and SD adapter ![]() Micro SD card (buy a fast and reliable one).Raspberry PI (I prefer model 3B+ above model 4 because of lower power consumption and less heat production).It seems as if the guy with the DSP knowledge has left the company? The HifiBerry DAC+ DSP allows you to do room correction.Īnd there is still an issue: when music is very soft (e.g. speech or meditative music), the output is muted shortly, which is very annoying. HifiBerry has released new and better DAC boards which I didn't tried out yet. This manual is useful if you need to install Node-Red for controlling room correction filters. There is so much to configure!Īlternatives (in most cases much easier then what is presented here): PicorePlayer and Max2Play. Originally I started this page as a log book for myself. Recipe for building a high-end media server using Logitech Media Server and a HifiBerry DAC+ Pro, Spotify, YouTube using a USB CD/DVD player. Building a Logitech Media Server using a Raspberry Pi and HifiBerry DAC
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