No question about it 2 600.....but make sure that they are brigable down to 2ohms mono....its cheeper to run in stereo but mono is better.....I am assuming that these are the 4ohm subs......I think Pioneer also has an 8ohm model......if you did 4 of the 8ohm model it would be cheeper for you.......because you could buy two amps that are 4ohm stable....