But can i put an amp of one channel with a pair of v-max. I have TWO Vmax not one. i wanted to buy an amp to move the speakers and deck of the interior, i suppose i have two buy two amps. What do you recommend me.
You don't have to buy two of them. You wire both subs to the same amplifier. What this does is creates a different impedance (resistance). If you wire two speakers in parallel (both speakers connected to the same amp terminal) you cut the resistance in half because the current has more paths to flow, similar to if you used a y fitting on a water hose, past that point the water wouldn't have as much holding it back. You'll get 600 watts total at either a 1 or 2 ohm load with that amp, which will work with the Vegas, whether their SVC or DVC.