Thats a great deal, they cost about $1800 new here in the Twin Cities and the MG12's sell for $1100. If you buy them, make sure they are packed up in their original boxes as the drivers are fragile to pressure. You might want to ask him if you could bring along your CD player and amp to see how they sound. Bring some well recorded music.

And I agree with Geoffin, they are difficult to overdrive. I took a drive over to the Magnepan Factory which is 20min from my house and talked with the Engineers there and they said that there is no max power rating because they will take as much as you can give them as long as the amp can deliver it cleanly.