The 8" Bazooka (not the doubles) will be a real struggle to hear while wakeboarding and their sound quality is in line with their price. The Bazooka 8" HLCD have poor mid-bass as compared to a higher end HLCD's. These can be heard while boarding, but again, sound quality.

I would suggest steering clear of the doubles. Wiring two different sized speakers together on a single chnl always leaves one speaker compromised to some degree. If you tune for the smaller speaker, then you dont get the mid-bass out of the larger driver that you wanted. Tune for the larger driver, and you are over driving the smaller speaker. The doubles use a 5.25" speaker in the front.