On one of your previous posts you said that you could. I don't see why you couldn't connect the front and rear speaker outputs in a voltage doubler configuration (negative to negative) and drive the speaker with the 2 positive output wires. Im sure you have good reason for telling me this though, did you learn otherwise after posting that?
I spoke with the product engineer at JBL. I don't recall stating the outputs could be paired. If so please let me know the post number so I can correct the error.