Need to confirm which sunhan amps to use

[shockwave199]

I have a p3a and a Maxx Evo antenna kit. I have old version sunhan amps, a 2.4 and 5.8. Question, does anyone know for sure that you need to use those two in the setup or just two of one or the other such as only two 2.4 or 5.8? Thanks so much if you know the answer.