Active Sub Woofer Do I Have To Connect My Front 2 Speakers To My Active Sub Woofer?

Do I have to connect my front 2 speakers to my active sub woofer? - active sub woofer

I have an AV amplifier Yamaha DSP AX759SE How do I connect a powered subwoofer, Harman, I mean the front left and right to the subwoofer, and what are the parameters of the sub-switch (phase / crossover / volume) Thanx