Interesting idea
First, the Axiom QS8s are a sealed design.
If you connected the crossovers in parallel all drivers would fire in phase, but it would be equivalent to connecting both pairs of BIC bookshef speakers to a single amp channel and would have an impedence of 4 ohms or less. Not good for most receivers. You would need to modify the crossovers to achieve the correct impedence, or connect both in series (16 ohm speaker).
I would consider copying the dimensions of the Axiom speaker if that is what you are trying to duplicate.
Post your results if you come up with something that works.
