During my research for an integrated tube amp I stumbled upon PrimaLuna and upscale’s videos, I have to admit they were very convincing and I liked the no bullshit approach. As I live in Switzerland I didn’t buy from upscale, but from a known speaker manufacturer who also distributes them here. I’m very happy with the EVO 400i. Although I have to admit it works better with >90db sensitive speakers which I’m testing right now. I get wide soundstage, beautiful separation even with big orchestras, punchy clear bass, amazing vocals and details. I can only compare it to my previous Rega Elex-R, which sounds also quite good, but it’s in a different league.