Boss is a white car stereo speaker of a basic grade. Baab is a high power handling speaker designed for the marine application from the ground up. The cones are annodized aluminum to be light for clean clear sound.
In a boat speaker, the cheapest becomes expensive after purchasing twice. You are better off buying an overengineered product that will last longer and impress often.
PM the size you need and Ill get you a deal. Also reply with type of amplifier you are using if any so that I may suggest the correct speaker.