There is no way of answering that question I'm afraid. They are totally different speakers, and different passive radiator designs behave in different ways to each other depending on alignment, in the same way that different vented designs behave in different ways to each other depending on alignment. Here you're asking if a loudspeaker of unknown alignment using passive radiators will perform in a similar way to a vented enclosure using a (possibly, but we don't know) different alignment, which you've changed from the intended design. Short version: I haven't the foggiest. I wouldn't expect so, but we're largely flying blind.