I bought the small Audio Engine for my daughter, I can't remember their model but it was the littel $199.00 set with a 3" driver. The reviews were good but I was a bit hesitant with such a small driver. The reviews are right, the speakers are really good. Sound quality is excellent but you may find yourself wanting more power if you like it loud or have a large room. I haven't heard the M-Audio. If you did buy the AE you might be able to save up and add their sub in the future. These little jewels require some break in time, I was a bit disappointed with them out of the box, wondering why the high price and what the fuss was about, I turned the Media Player on repeat and let the speakers play about 24 hours and it made a world of difference. M-Audio I believe is more of a Pro Sound product so you may be able to buy from a retailer who would allow a 30 return if wanting to check them out. Just make sure no restocking fee is charged.