That depends on how the speakers are wired inside the box.I have 2 ports on the back of the box,i guess doing this il only use 1 set of em?
You should always try to run the exact same sub pairs. But if the repair was done correctly, you don't even need to replace the current sub.One issue i have is one of the subs has been "repaired" Someone covered half of it in some black glue stuff. Not sure if its even audio material. But im sure it affects the sound. Time to buy a new sub. Do i have to run the same subs as a pair? or can it be 2 different kinds with possible using one say 250 rms and one 200 rms..