Mid-bass question

Ok, i am thinking getting eu-700 for midbass in the back and now if i wanted to use them for midbass would i use the rca for the rear or the subwoofer if i want it for midbass

what head unit? you could use either depending on your head unit. are you going active or passive? if active, are you using crossovers from the head unit or the amp? You just need to find what frequency you want them to play at and set your crossovers. Whichever can set them their will work.

don't use the sub output, it plays from 20 Hz up to the crossover freq. You need a bandpass output (like a midrange output) for a midbass.

ok thanks and i plan on using active and using the HU one