I forgot to clarify that the boat came stock with 2 batteries. I am using the interstate marine 24m - xhd batteries for both the accessory and cranking battery. For now I was probably thinking of just adding a set of pro 80's and powering them with one of the syn amps from wetsounds that matches that power requirement. As soon as I can get my stock speakers sold anyways.
Ive heard that the syn amps from wetsounds are pretty efficient tho pricey. How would that set up go with my two batteries described?