Your 801 puts out 100w and is an underrated, overpowered machine whose biggest fault us that it can be a bit flat in its presentation. Its pure direct is a sonic delight. Owning one, however, I will say its phono stage is a weak point.
There are tons of possibilities at your price range. You’d best be off taking the 801 to whatever dealer is near you to test out speakers. You gave a large room, so you’ll want something with projection. Consider Maggie’s or open baffles like Spatial Audio