One question raises it's head..
How the hell did you manage to blow the 15" woofer?

Mackie owned RCF (Italian speaker manufacturer) for a while, when RCF broke free, Mackie started using drivers from the far east, and as a result they are no where as good.
I would guess that you may well have a RCF driver. Might be worth asking them, they can only say no.

In future when is sounds as if your speaker cabs are about ready to let go, back off the volume!

(I bet he's a DJ - not happy unless the clip LED is glowing bright red to match the blue power LED)