Depending on the board the power supply complexity differs.
Hifiberry digi pro linear power supply.
He uses a large heat sink and a small ventilator to get rid of the heat.
Hans beekhuyzen tested various products and gives his personal recommendation.
Note that the power supply needs to provide at least 5v 1a for a stable operation of the raspberry pi.
For sharing ground between the dac pro and rpi 3 should i use the same linear power supply unit to power the rpi and dac pro via 1 using a usb hub or 2 need a linear power supply with dual usb ports.
Bug the digi is full digital and don t delivers an analog signal so the power source shouldn t really matter.
Thus i am planning to power the dac pro with linear power supply as you mentioned above and am about to order a linear power supply unit.
Depending on the input voltage this means heat.
You need to de solder the resistor r3 and connect your external 3 3v power supply to the pin header p5.
Does hifiberry sell a regulated linear power supply for the raspberry pi and digi.
I ve purchased both hifiberry components and they work without technical problems but i believe there s more sound potential through optimizing power conditions.
However a small modification on the board is needed.
However a small modification on the board is needed.
I m planning a complete separation of power supplies between raspberry pi and digi or dac.
I ve read a lot about improvment in sound quality with a better power source like linear power etc.
Also the digi pro already uses an onboard linear power supply.
If you use separate power supplies gnd has to be connected for both.
As the performance of the dac2hd is better than the performance of our dac pro it requires a more complex power supply.
The analog part of the dac pro can be powered independently from the power supply of the raspberry pi and the digital part of the circuit.
Hi i am a new user here.
Here comes another nice hifiberry dac installation.
Power supply review by hans beehuyzen.
I m new and just began to build a raspi 3 with the digi pro.
The digital audio part of the digi pro can be powered independently from the power supply of the raspberry pi.
An 1 2a power supply will be enough for both raspberry pi and hifiberry.
Very poor external power supplies might not be able to provide a stable power supply under all conditions.
I believe the hifiberry digi draws only a few ma 50ma.
Therefore he created a hifiberry setup with a huge linear power supply.
Additionally he explains how to connect a power supply directly to the hifiberry dac pro.
Does the quality of the power source affect the audio quality.
