You dont mention your speakers then it is difficult to recommend an amplifier ...
By curiosity which are they ? 😊 Efficient one or not ?
Unlike many people i had reduce the size of my room and speakers and i had never been so happy , even if my soundstage is not as spectacular as in my past acoustic room this is satisfying and surprizingly clearer because my past speakers were old and i listened now in near listening field ...The small active modified speakers i own had other qualities compared to my past speakers...
Then downgrading is not necessarily loosing on all counts ...