crossover basics:

Gonk, so now that I have the following setup:

X_Over
Front L/R X-Over: 40Hz
Center X-Over: 60Hz
Surr L/R X-Over: 60 Hz

Speaker Size
Front L/R: Small
Center; Small
Surr L/R: Small
Subwoofer: LFE/YES

I should set the cross over (Low Pass) knobs on each sub to their highest setting to avoid double-crossover, correct? Just checking.