[Larsf333]

I have just received the new evolution streamer.

It works fine and sounds good, but how to provide the best power supply for the device is a little confusing.
The evo streamer can be powered either by 230V or from an external 12 V dc linear power supply.

Based on recommendation I also bought the nuprime lps212 power supply, as the manual states it can be used.
However, the lps212 has a maximum output current capacity of 2A, and it runs quite hot during operation.
I replaced it by another lps, that has an output capacity of 4A, and that lps does not run hot.

When powering the streamer from 230V, the streamer does not run hot, and also sounds good. The description of the internal power supply states:
Power Input Noise Filtering: Incorporates a high-frequency noise filter in the power input module, ensuring accurate signal transmission with minimal noise and perfect phase synchronization.

So the final question is, what is the optimum power supply for the evo stream, internal or external?
And how much power does it really consume? There is no information in the specifications. Probably dependent on which applications inside that are active?

Also, the streamer has an unusual option for grounding on the rear panel. When the streamer is powered by 230V, it will be grounded by the power cable, and I assume it is not relevant to use the grounding connector.
When the streamer is powered by 12V, there is of course no grounding. What are the recommendations for the grounding?

[rustydoglim]

It’s the weekend and year-end holidays, so I’ll check with the R&D team for their recommendations next week. NuPrime typically uses the chassis as an additional heatsink to dissipate heat, preventing it from being trapped inside. As a result, whether the case feels hot or not shouldn’t be used as a point of comparison.

Base on the CPU and motherboard components, the max power consumption should be about 80W.  With AC=110V in the US, 2A power supply gives you 220W, more than sufficient.  Knowing how well the Evolution Stream has been put together, I don't think you need to upgrade the power supply just yet but I will check with R&D).

The external power supply and grounding options are reserved for potential upgrade, which the components are available.
Case in point: The extra internal grounding block design was added near the end of the project. 
How would the external grounding improve the Evolution Stream would depend on the entire system grounding.   

[Larsf333]

Thank you for the reply.
I will look forward to further recommendations.

But as I understand it, The capacity of 2A for the lps212 is on the output side. And therefore the max output effect is 2A*12V=24Watt.
That is not much effect for the streamer, and I think that is the explanation of why lps212 runs hot.

I have measured the power consumption of the streamer using a 230V energi measurement device.
Luckily, the power consumption of the streamer is much lower than 80Watts.

When the streamer is connected directly to 230V, it draws 0.12A when running, and 0.08A in standby(!).
When the streamer is connected to an external power supply, the power supply draws 0.10A when running, and 0A in standby


0.10A*230V is 23Watts, so the consumption is close to, but just within the capacity of the lps212.


Strange, that the builtin power supply has a high stand-by usage of 0.08A=about 10watts

[rustydoglim]

You're right, shame on me for making the wrong calculation