Can monitors sit on a TV console instead of stands?

Hi,

I have a 23" high 80" long console that has a 65" TV on it which is 57" wide.

This leaves 11" on either side of tv  to place a monitor (bookshelf) speaker.

They would be about 5.5 feet apart and 23 inches off the ground on a 200lb solid wood cabinet. I'm afraid if I place bookshelf speakers on stands on either side of the console they will be too far apart (approx 8 ft apart, and I sit about 9-10 feet back ), At that point I should consider Floor floorstanders. Your thought?