All for sale pm for price

I recently picked up a phoenix gold system from a friend for pretty cheap. This is what I got: 2 brand new pg x-max 10 inch v2 subs, 2 m-50 amps, 1 m-44 amp, tba transmiytter and receiver, one eq 215 x. I have no clue what the value or quality of phoenix gold car audio is. What amp should I use to p...