I own NAD gear(T175HD, T773, C542) and as you know the 3020 is lengendary. I also own Denon 80's/90's integrateds and CD players and I am very pleasd with all of them. The Denon integrateds are fantastic with plenty of punch and very neautral sounding IMO. Very well built also. No personal experience with HK but heard sound quality is top notch.
Bill
Bill