Welcome Bill!
Loudspeakers make the most difference, followed by the space. Power amps provide synergy to the loudspeakers.
Was a VMPS fan, in fact sold a DVD player (a popular audio transport) to big Bill back in the day. We had a dealer nearby, he was a fan that sold mostly car stereos, but was a fan too. It was the only audio shop in town. My favorite was the 626.