We are starting a mobile dj company and my qustion today is one about audio?

we are getting a pair of JBL JRX118S 18" Compact Subwoofers and 4 JBL JRX125 Dual 15" Two-Way Sound Reinforcement Speakers...my qustion is 1 what 1 amp should i use with the subs, and what 2 amps should i use with the jrx125s..also will a Behringer MDX2600 Expander / Gate / Compressor / Peak Limiter,,,,dbx AFS224 Advanced Feedback Suppression,,,,dbx 1231 Dual 31-Band Graphic Equalizer go good together or should i just get the dbx DriveRack-PA EQ & Loudspeaker Control System http://www.youtube.com/watch?v=gIMqCDW5ZXc