Replacing Bel Canto S300 blown ASC200 module

So I have lost left channel on my S300 and after reading up on the amp a little and realizing that Bel Canto seems to have just wrapped two ASC200 modules in a nice case, maybe I should just order a new module for $129 and replace it myself.
A couple questions for smarter people than I. First, the ASC200 (at parts-express) says it is rated at 200W @4ohms, but the S300 says it is rated at 300WPC @4ohms. How can this be different? Second, looking at the pictures of the inside of the amp, this looks like an easy plug and play--is it so simple?
You might blow the amp up, but I don't know about you going with it. Good luck... it seems like a great way to fix these.
Well that took about 5 minutes...I honestly didn’t believe it could be so simple.  Makes me want to spend some time on the diy forums and see what else I might be able to do.  All in, it cost me $136 to put a new left channel in the amp....I have a feeling Bel Canto would have charged me a bit more than that.
@ukthunderace  Congratulations.  Not only satisfaction of fixing it yourself but also assurance of being able to do this again (god forbid) in the future.