I'm inclined to agree with RickF and Ken; I think you'll be just fine with the M22's in those openings. As long as the port can "breathe" (i.e. it's not sealed into a different space than the listening space and it has adequate clearance), everything should be dandy. On a sonic basis, I agree with the suggestion to put them updside-down, but that might look kinda freaky. I bet you'll be pleased. If not, you can always try the W22's.

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