What do the shops or stores carry around you? (Greenland, Denmark,?) Not sure what brands are readily available to you
Mainland Denmark. Pretty much the same as in the rest of Europe/the US, I would expect.
Receivers: Denon, NAD, Onkyo, Yamaha, Cerwin Vega, Harmon Kardon, Pioneer (Primare, Rotal also carried, but I've never heard of those before) and many others. It is also quite easy to order from the UK or Germany - though a 50kg sub might be expensive to ship.
Speakers: Home Cinema, Bose, Harmon Kardon, Onkyo, Jamo, AudioVector, Martin Logan, Raidho, Klipsch, System Audio, Cerwin-Vega, Dali, B&W, Audio Pro, Monitor Audio, SVS, Yamaha
I have a slight affinity for the (Klipsch owned) Jamo or Dali as they are local - but above all else, I wanted quality for the buck.
In other words, suggest something and I'm sure I'll find it.
Alternatively, let me know if I'm on the right path with a surround setup rather than a floor speaker.
Also, the Onkyo amp doesn't have a pre out. I have no idea what that is, but some think I can't live without it. Others say it's irrelevant.