Would a subwoofer sound better?

Would there be a problem with positioning thr sub next to the stand of the speaker? And if that's not a problem then why not just get 2 of the small Rels which will help out greatly with room nodes and the seco nd one will more likely than not give you the quanity of bass you desire.
Two smaller one are usually the better way to go than one larger one.Just a thought.