How does it compare with the Violectric V202/V222? with a higher price and I would also ask you for a comparison with the V550. Thank you

@Guy Fawkes , please read the full version of the review in my website where you will find a comparison with the V222.

I have bought an Aune S17 Raptor, which is an Aune S17 Pro without remote control (for chinese market). And in my case, the working temperature is 54⁰C for 50mA and 65⁰C for 100mA. But with my favorite headphones, which is Focal Radiance, 50mA is enough, I can't hear the difference with 100mA. But with LCD-2 Rosewood the difference is audible.

With the Focal Clear Mg I also prefer the 50mA.

Thank you for this review. I've had my eye on this one.

How is the S17 as a preamp to a speaker power amp? Could the S17 anchor a system for headphones and speakers?