Almost every bookshelf speaker needs a sub to fill out the lower frequencies. The Axiom M22s are honest. They don't try to do what they can't do well. They are clean, accurate and sonorous throughout their frequency response range. If you want a bookshelf, you're going to need a sub.

My M50s needed a sub. My M60 like Michaura M665s need a sub. A real full range speaker will cost you an arm and a leg and I assure you, it won't be a bookshelf speaker.

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.