Hey Vet -- If you think your Linns are at all bright then the Acurus amp might not be the best match .... Parasound has always had a rep for being a little more warm. I think Rotel is laid back too, and I have a NAD unit that is very gentle with highs. Those are about the only amps I've heard myself.
Maybe folks call Acurus bright when compared with Aragon, their more expensive (former) big brother. I never found them to be so, but like I said if the source material is screechy then the Acurus is going to throw every bit of that screech right at you. I just try to turn the bad stuff down. When the material is recorded right, you can't beat them.
EAD is a Brit manufacturer, yes? If so it's not likely that it will add any brightness to the mix.
My Dynaudios are nominal 4 ohm speakers too. Are you looking at the 200 watt 3-channel? I know they have made 80w, 100w, 150w, 200w, and 250w, 2 and 3 channels in different configs.