Running 4 ohm speaks on bridged amp...ok?

I am contemplating using a Classe CAV-75 to drive a pair of Magnaplanar 1.6 speakers. Since the Maggies need lots of power, I plan to bridge two of the amp's channels to 150w. However, since these speakers are already 4 ohm, does the bridging effectively make them 2 ohm, and can the amp handle it?
Another unexpected problem of bridged amps is heat. Recently I added a second amp and bridged them and they heat the room up way to much.
Wow. Thanks for all the responses. I should have known better than to expect a unanimous opinion. I did finally contact Classe, and the tech there suggested I shouldn't have any problem. Of course, the proof will be in the pudding. When I get everything set up my ears will be the judge.
When you bridge amps you increase the amping is perferable.