The older MMG's had more substantial wood side rails. I'm not sre what year they went to the current thin rails. The danger with older planars is the wires lift off the mylar as the adheisive breaks down from heat/sun/age. The newer models reportedly have better adheisive.
Magnepan MMG inquiry
Can anyone tell me if the Magnepan MMG speakers have had any updates since year 2000? I am looking at a pair on craigslist but they are from 2000 which is over 10 years old now. Don't know if I should buy them or not. Thanks for your help