A greater sense of space comes by adding more space. The room itself should be calibrated against a baseline measurement where every speaker hits the primary listening point at exactly the same time. This way, when audio effects that the receiver outputs is utilized it can properly put them in place. 'Concert Hall' is one of those ways receivers often can convey greater space to listeners, but you don't want to 'fool' the receiver to accomplish it.
Set things up correctly to begin with, then utilize the receiver as it was designed for. That'll give you the most performance you could really ask for at any price point for a receiver.
