I wanna know if u guys think a PDX 4.150 Will Be enough to power out .. 2 Set of Alpine SPX-17PRO with the crossover and all ?

 

I don't see why not.

The amp is rated to put out 150wrms x 4 and the speakers are rated for 100wrms.

 

and the pdx series is also underrated so you can count on more power than 150 wrms per channel.

 

yeah the sheet that came with my pdx 4.150 says its rated at 176 wrms per channel

 

the PDX 4.150 was made for the line of SPX PRO and the PDX 4.100 was made for the SPX REF. so you have the right amp for the right job. a more power is allways better anyway. just watch the gains and tune properly