Try these:

DAYTON DA135-8 5-1/4" ALUMINUM CONE WOOFER

DAYTON DA175-8 7" ALUMINUM CONE WOOFER

DAYTON DC25TS-8 1" SHIELDED TITANIUM DOME TWEETER

Look a lot like Axiom's drivers and when I emailed Parts Express they said that the drivers were made in the Far East, which is where Axiom's drivers are made IIRC. Not to churn up a hornet's nest or anything.

Of course even if they were made at the same factory there's no guarantee they have the same T/s parameters.