I am looking to add speakers to the bags. I am running an Alpine head unit, 2 Rockford Fosgate Punch 6x9 3ways in the fearing with a DS18 Candy Micro 4, 4 way amp. It sounds great but I still want to add some speakers in the lids. I am wanting to add some more bass without a sub, I actually use my bags quite a bit. Any suggestions? Would 2 ways give me a bit more bass?