Thanks for your replies!
My room is 12x20 with large opening to the dinining room.
I've just listened N804 with Mcintosh MA6500 integrated amplifier. I liked the sound. The female voice is very natural, plenty of bass. Much better comparing to DENON 5803.
I do not think I care about SACD for now, just good 5-CDs changer.
Could you also advise me how can I extend my 2ch integated amp into home theater.