Is that all that's in the room besides the equipment is a sofa and chair? A friend of mine got displaced from his home temporarily from hurricane Ian. He moved into his brother's. He had to store his living room furniture and other salvageable goods in his brother's music/theater room, which amounted to two additional sofas, upholstered chairs and a recliner. Also some mattresses stacked against the back wall, half dozen cardboard boxes full of bed clothes, and books. Brother noticed immediate improvement with his sound system and thought he was just having good listening days until his bro got his house back and took all the stuff back out.
Now he's refurnishing the room to look more like a living room. I know that's not fitting with today's sterile living spaces, but the cluttered living spaces of the '70s were much better listening environments, and this when speakers were large, and rooms much smaller.