HelpNoob needs a new amp (maybe)

Hi guys,

I just signed up and have recently got bit by the hifi bug. I was doing car audio sq. And in my reading and adventures started out with a pair of elac b6’s a freya pre amp with tungsols and a nuforce Sta-200 with all blue jean cable rca’s. Sourced from a bluesound node 2 hard wired to router mostly playing mqa from tidal. Any way I sold the elacs and was thinking of getting buchardt s400’s, the problem is my sta-200 is 8ohm stable and a little stable at 6 ohms but the buchardts are 4ohm. I’m not going to ask what amp to get because that’s like asking what car to buy, but wanted any input that amps that do 4ohms and a decent power rating that’s similar to the nu force. I belive it’s based on a goldmund design and to my ears sounds really good. And would like something similar sounding. Paired with the freya in tube mode I just love it not too sterile with great detail and dynamics. Some options I’ve considered are the Vidar but have no way to hear one before purchase. Should I be trying to get a real goldmund amp? Pretty spendy for me. Thanks