@Maximillion I don't know too many Euro brands, but take a look at the SPL S800 Performer amp. The brand is generally well regarded. I'd also take a peak at the pro audio offerings. There's quite a lot of interesting stuff in the Euro market for that. Most have fans, but they can run surprisingly quiet unless you're cranking it (Powersoft is the first that comes to mind, and they have several 4-channel models).