Sub matching for Rockford P500X1BD

[Dopeinthetrunk]

Is this sub the same model? 600w 15 vs. 750w 12. What is rev.3 refer to?

 

[C1500martin 10+ year member]

Do you know the size box a ported 15 needs?

Check your measurements first but no rev 3 means the third revision sundown has made of the SA series. Its the newest version