Help with B&K 7250 mkii

I have a B& K 7250 mkii that has a blown left channel.  Not sure what happened, it blew while using it in a 2 channel set up. I had the amp serviced and checked which showed the other 4 channels are good. The info I've  found says all channels are identical.  This being said, can I utilize any channel as a L/R for 2 channel listening. Currently shopping for a true 2 channel set up, but want to use this until then. Thanks for your help.