I would recommend listening to the Marantz PM-11S3 if you can find one before they are all gone. Very conservatively rated, in you price range, and can drive Dynaudios effortlessly while giving that sweet Marantz sound.+1 to the above suggestion.
I drive my Dyn Focus 260's with the above amps little brother, a PM-15S2 that still puts out 140 wpc into 4 ohms, more than enough for my Dyns that are 4 ohm, 87db speakers. I auditioned this amp against a McIntosh MA6300 that was rated at 160 wpc into 4 ohms and the Marantz sounded much better.
The PM-11S3 is a beast that actually double down from 100 wpc into 8 to 200 wpc into 4 ohms. More than enough for either the Dyns or Maggies.