I owned a MA6500 two years ago and loved it, btw, the 6500 is rated at 120 watts (8 ohms) It was the MA6900 that is 200 watts. The 252 is rated at 100 watts 8 ohm but to me sounds more robust than the 6500. Plus the soundstage and depth of the 252 is superior.
Loved the 6500, love the 252 more.