Honestly I'm unsure about the effectiveness of the Fmods. I'm a cheap skate, but I don't think they are good solution. You will need a revb minidsp especially if you are running dual subs. Don't worry about getting balanced for your amps because you shouldn't need it. The device is very small and you can run eq with one if you so choose. I recommend running an L-R4 filter on a ported sub at tuning for maximum driver safety.
